ES2956346T3 - Method and apparatus for reporting a channel quality indicator and modulation and coding scheme - Google Patents

Abstract

The present invention, related to the field of communications, describes a method and apparatus for reporting a channel quality indicator and a modulation and coding scheme so that a modulation scheme higher than 64QAM can be selected, thereby improving the performance of a communications system. The method includes: learning, by a terminal, a first CQI index according to a first CQI table, and sending the first CQI index to a base station; receiving, by the base station, the first CQI index sent by the terminal UE, determining a first MCS index according to the first CQI table, a first MCS table and the first received CQI index, and sending the determined first MCS index to the UE; and receiving, by the terminal, the first MCS index sent by the base station, and determining a modulation order and a code block size according to the first MCS table and the first received MCS index, where the first CQI table includes an entry in which a modulation scheme is greater than 64QAM, and the first MCS table includes an entry in which a modulation scheme is greater than 64QAM. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Method and apparatus for reporting a channel quality indicator and modulation and coding scheme

Technical field

The present invention relates to the field of communications and, in particular, to a method and apparatus for reporting the channel quality indicator and modulation and coding scheme.

Background

Currently, in a long-term evolution (LTE) system, a self-adaptive process of a physical downlink shared channel (PDSCH) is that: a user equipment (EU, User Equipment) estimates the channel information that is used to measure the channel state information (CSI); The EU calculates a signal-to-interference plus noise ratio (SINR) using the channel information and based on an optimal category indication (RI) and/or an indication of optimal precoding matrix (PMI); the UE obtains a corresponding channel quality indicator (CQI) according to the SINR and reports a CQI value to a base station; and the base station assigns a modulation and coding scheme (MCS) to the UE based on the CQI channel quality indicator (CQI) value reported by the UE and a network situation, where the MCS is used to indicate a modulation scheme and coding scheme currently used in the PDSCH.

In a wireless access point scenario, for example, in a relay (Relay) or LTE wireless access point enhancements (LTE-Hi, LTE wireless access point enhancements) scenario, an EU needs a more modulation scheme. higher than 64 quadrature amplitude modulation (QAM); However, due to a limitation in the prior art, a largest CQI value is 15 and a modulation scheme corresponding to the largest CQI value is 64QAM, which means that the EU cannot select a modulation scheme higher than 64QAM. , and system performance is adversely affected. Similarly, the base station cannot assign a modulation scheme higher than 64QAM to the EU either. The 3GPP TSG-RAN WG1 #73 R1-132015 document discloses that 2 simple MCS/TBS signaling solutions are considered for NCT for improved spectral efficiency. Document CN 102684816 A discloses a data transmission method with hot cell coverage. The modulation mode can be optimized to be able to support at most 256 QAM, the system performance is improved, and the problem that the system transmission rate cannot meet the actual demands in hot cell coverage can be solved. US 2010/0195614 A1 discloses various TBS values in Figures 9a to 9k, but the range of the TBS index is 0 to 26. EP 2953401 A1 discloses an adaptive coding and modulation method for a shared channel of downlink. Specifically, it discloses TBS values when the TBS index is 27.

Compendium

Embodiments of the present invention provide a method and apparatus for reporting a channel quality indicator and a modulation and coding scheme, which allow a UE and a base station to select a modulation scheme higher than 64QAM and, therefore, consequently, improve system performance. The invention is defined in the attached independent claims. Other embodiments are defined in the dependent claims. The object that is not included in the scope of the claims should be considered as an example.

According to a first aspect, a CQI notification method is provided, which includes:

learning a first CQI index according to a first acquired CQI table; and

sending the first CQI index to a base station, so that the base station determines a first modulation and coding scheme MCS index according to the first CQI index, where

The first CQI table includes:

an input in which a modulation scheme is higher than quadrature amplitude modulation, QAM, 64; and

at least one entry that is in a second CQI table and in which a modulation scheme is a quadrature phase shift, QPSK; wherein the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first join is N entries that are in the second CQI table and in which the CQI indices corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where

the modulation schemes at the entries in the second CQI table include only QPSK, 16AQM and 64QAM. With reference to the first aspect, in a first possible implementation, the at least one entry found in the second CQI table and in which a modulation scheme is QPSK includes:

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is the same; or part of inputs that are in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is not the same; or part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is QPSK; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which a corresponding CQI index is largest among all the entries found in the second CQI table and in which a modulation scheme is QPSK.

With reference to the first aspect, in a second possible implementation, the at least one entry found in the second CQI table and in which a modulation scheme is 16QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 16QAM; either

at least one entry different from an entry in which a corresponding CQI index is smallest among all entries found in the second CQI table and in which a modulation scheme is 16QAM.

With reference to the first aspect or the two possible implementations above, in a third possible implementation, the first CQI table further includes:

at least one entry that is found in the second CQI table and in which a modulation scheme is 64QAM. With reference to the third possible implementation, in a fourth possible implementation, the at least one entry in which a modulation scheme is 64QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 64QAM; either

part of entries found in the second CQI table and in which a modulation scheme is 64QAM, where the part of entries is at least one entry different from an entry in which a corresponding CQI index is largest among all entries which are found in the second CQI table and in which a modulation scheme is 64QAM.

With reference to the first aspect, in a fifth possible implementation, a spectral efficiency at an input in which a corresponding CQI index is the smallest among the entries found in the first CQI table and in which a modulation scheme is greater than 64QAM is equal to a spectral efficiency at an entry in which a corresponding CQI index is the largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM; either

the spectral efficiencies at the T inputs in which the corresponding CQI indices are the smallest among the inputs in which a modulation scheme is greater than 64QAM are equal to or approximately equal to the spectral efficiencies in the T inputs in which the Corresponding CQI indices are the largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM, where T is equal to any natural number from 1 -5.

With reference to the first aspect, in a sixth possible implementation, a spectral efficiency at an entry in which a corresponding CQI index is largest among the entries found in the first CQI table and in which a modulation scheme is highest that 64QAM is:

4/3 times a spectral efficiency at an entry in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM; or 8 times the maximum code rate of a terminal, where the maximum code rate is a positive real number less than 1; either

7.4063; either

7,432.

With reference to the first aspect, in a seventh possible implementation, the spectral efficiencies in in ascending order; that the spectral efficiencies in X inputs arranged in ascending order of spectral efficiencies, a difference between a spectral efficiency in each input and a spectral efficiency in a respective preceding input is equal to the same constant; that the spectral efficiencies in the ; and X is an integer greater than 2;

a spectral efficiency on an input in which a corresponding CQI index is the smallest among the wherein a corresponding CQI index is the largest among all entries found in the second CQI table and wherein a modulation scheme is 64QAM; and a spectral efficiency on an entry in which a corresponding CQI index is the largest among the X entries found in the first CQI table and in which the CQI indices are the largest is:

4/3 times the spectral efficiency at the input for which the corresponding CQI index is the largest among all entries found in the second CQI table and for which a modulation scheme is 64QAM; or 8 times the maximum code rate of a terminal, where the maximum code rate is a positive real number less than 1; either

7.4063; either

7,432.

With reference to the first aspect or any one of the first, second, sixth and seventh possible implementations, in an eighth possible implementation, the spectral efficiencies at the entries found in the first CQI table and for which a modulation scheme is superior to 64QAM include at least one of the following groups of numerical values:

{5.5547 6.1805 6.80627.432},

{6.1805 6.8062 7.432},

{5.5547 6.1797 6.80477.4297},

{6.1797 6.80477.4297},

{5.5547 6.1719 6.7891 7.4063},

{6.1719 6.7891 7.4063},

{5.5547 6.4934 7.432},

{6.4934 7.432},

{5.5547 6.4922 7.4297},

{6.4922 7.4297 ,

{5.5547 6.48057.4063},

{6.4805 7.4063},

{5.5547 6.48447.4063},

{6.4844 7.4063},

{5.5547 6.02406.4934 6.96277.432},

{6.0234 6.49226.9609 7.4297},

{5.5547 6.02346.4922 6.96097.4297},

{6.0176 6.48056.9434 7.4063},

{5.5547 6.01766.4805 6.94347.4063},

{6.0176 6.48056.9434 7.4063},

{5.5547 6.01566.4844 6.94537.4063},

{6.0156 6.48446.9453 7.4063},

{5.5547 5.93026.3056 6.6811 7.05657.432},

{5.9302 6.30566.6811 7.05657.432},

{5.5547 5.92976.3047 6.67977.0547 7.4297},

{5.9297 6.30476.6797 7.05477.4297},

{5.5547 5.92506.2953 6.66567.0360 7.4063},

{5.9250 6.29536.6656 7.03607.4063},

{5.5547 5.92196.2969 6.6641 7.0391 7.4063}, and

{5.9219 6.29696.6641 7.0391 7.4063}.

With reference to the first aspect, in a ninth possible implementation, a range of values of a CQI index in the first CQI table is the same as a range of values of a CQI index in the second CQI table.

According to a second aspect, an MCS notification method is provided, including:

receiving a first channel quality indicator index CQI sent by a terminal EU, where the EU determines the first CQI index according to an acquired first CQI table;

determining a first MCS index according to the first CQI table, a first MCS table and the received first CQI index; and

send the first determined MCS index to the EU, where

The first CQI table includes:

an input in which a modulation scheme is greater than 64QAM; and

the first MCS table includes:

an input in which a modulation scheme is greater than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a second combination, formed by the at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the second combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, o K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

the modulation schemes in the second MCS table include only QPSK, 16QAM and 64QAM.

With reference to the second aspect, in a first possible implementation, the first CQI table further includes:

at least one entry found in a second CQI table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first combination is N entries found in the second CQI table and in which the CQI indices corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where

the modulation schemes in the second CQI table include only QPSK, 16QAM and 64QAM.

With reference to the second aspect or the first possible implementation, in a second possible implementation, determining a first MCS index according to the first acquired CQI table, a first acquired MCS table and the first received CQI index includes:

determining a first TBS index and the first MCS index according to a first PRB quantity, the first CQI table, the first MCS table and a first TBS table that are acquired, and the first CQI index received, where

the first PRB quantity is a PRB quantity assigned to the UE by a base station; or the first PRB quantity is the largest integer that is less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient; and

the first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table.

With reference to the second possible implementation, in a third possible implementation, a range of values of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a range of values of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to TBS indices 0-C in the first TBS table are the same as the transmission block sizes corresponding to TBS indices 0-C in a second TBS table, where C is an integer non-negative less than or equal to 26; a range of values of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

With reference to the second aspect, in a fourth possible implementation, determining a first TBS index according to the first CQI table, a first PRB quantity, a first TBS table and the received first CQI index includes:

determining, according to the first CQI table and the first received CQI index, a first modulation scheme and a first spectral efficiency that correspond to the first received CQI index;

learning, according to the first PRB quantity and the first spectral efficiency, a first transmission block size transmitted to the UE; and

obtain, according to the first TBS table, the first TBS index found in the first TBS table and corresponding to the first transmission block size and the first PRB quantity.

With reference to any one of the second, third and fourth possible implementations, in a fifth possible implementation, the first TBS table includes a TBS index Y1, where for each PRB quantity, a transmission block size corresponding to the TBS index Y1 is greater that a transmission block size corresponding to a TBS index 25 in the second TBS table and less than a transmission block size corresponding to a TBS index 26 in the second TBS table; a range of values of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

With reference to any one of the second, third and fourth possible implementations, in a sixth possible implementation, the first TBS table includes a TBS index Y2 and at least one entry corresponding to the TBS index Y2 in the following Table A, where any one entry includes a PRB quantity and a transmission block size corresponding to the PRB quantity:

Table A

I,

the first TBS table includes a TBS index Y3 and at least one entry corresponding to the TBS index Y3 in the following Table B1, B2, B3 or B4, where any entry includes a quantity PRB and a transmission block size corresponding to the quantity PRB:

Table B1

Table B2

Table B3

Table B4

I,

the first TBS table includes TBS indices Y4_1 to Y4_5 and at least one entry corresponding to TBS indices Y4_1 to Y4_5 in the following Table C1 or C ₂ , where any one entry includes a PRB quantity and five transmission block sizes corresponding to the PRB quantity:

Table C1

Table C ₂

With reference to any one of the first to sixth possible implementations, in a seventh possible implementation, the at least one entry found in the second CQI table and in which a modulation scheme is QPSK includes:

part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of the inputs are equal; or part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where a difference between the successive CQI indices corresponding to the part of the entries are not equal; or part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one different input of an entry in which a corresponding CQI index is the largest among all the entries found in the second CQI table and in which a modulation scheme is QPSK; or part of the inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one different input of an entry in which a corresponding CQI index is the largest among all entries found in the CQI table and in which a modulation scheme is QPSK.

With reference to any one of the first to sixth possible implementations, in an eighth possible implementation, the at least one entry found in the second CQI table and in which a modulation scheme is 16QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 16QAM; or at least one entry different from an entry in which a corresponding CQI index is the smallest among all the entries found in the second CQI table and in which a modulation scheme is 16QAM. With reference to any one of the first to eighth possible implementations, in a ninth possible implementation, the first CQI table further includes:

at least one entry that is found in the second CQI table and in which a modulation scheme is 64QAM. With reference to the ninth possible implementation, in a tenth possible implementation, the at least one entry in which a modulation scheme is 64QAM includes:

all entries found in the second CQI table and for which a modulation scheme is 64QAM; or part of the entries found in the second CQI table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which a corresponding CQI index is the largest from among all the entries found in the second CQI table and in which a modulation scheme is 64QAM.

With reference to any one of the first to tenth possible implementations, in an eleventh possible implementation, a spectral efficiency at an entry in which a corresponding CQI index is the smallest among the entries found in the first table CQI and in which a modulation scheme is greater than 64QAM is equal to a spectral efficiency in an entry in which a corresponding CQI index is the largest among all the entries found in the second CQI table and in which one modulation scheme is 64QAM; either

the spectral efficiencies at the T inputs in which the corresponding CQI indices are the smallest among the inputs in which a modulation scheme is greater than 64QAM are equal to or approximately equal to the spectral efficiencies in the T inputs in which the Corresponding CQI indices are the largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM, where T is equal to any natural number from 1-5.

With reference to any one of the first to eleventh possible implementations, in a twelfth possible implementation, a range of values of a CQI index in the first CQI table is the same as a range of values of a CQI index in the second CQI table.

With reference to the second aspect or any one of the first to fourth possible implementations, in a thirteenth possible implementation, the at least one entry found in the second MCS table and in which a modulation scheme is QPSK includes:

part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where a difference between the successive MCS indices corresponding to the part of the inputs are equal; either part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where a difference between the successive MCS indices corresponding to the part of the inputs are not equal; either

part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of the inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

With reference to any one of the first to fourth possible implementations, in a fourteenth possible implementation, the at least one entry found in the second MCS table and in which a modulation scheme is 16QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of the inputs are equal; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between the successive MCS indices corresponding to the part of the inputs are not equal; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one input different from an entry in which a second MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where the part of the entries is at least one entry different from the entries in which a respective MCS index is the largest or the smallest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM.

With reference to the second aspect or any one of the first to fourth, thirteenth and fourteenth possible implementations, in a fifteenth possible implementation, the first MCS table further includes:

at least one entry that is found in the second MCS table and in which a modulation scheme is 64QAM.

With reference to the fifteenth possible implementation, in a sixteenth possible implementation, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which an MCS index is the smallest of all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which an MCS index is the largest of all entries found in the second MCS table and in which a modulation scheme is 64QAM.

With reference to the fifteenth or sixteenth possible implementation, in a seventeenth possible implementation, a TBS index on an entry in which a corresponding MCS index is the smallest among all the entries that are in the first MCS table and in which a modulation scheme is greater than 64QAM is the same as a TBS index on an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM; either

The TBS indices in the R entries in which the corresponding MCS indices are the smallest among the entries found in the first MCS table and in which a modulation scheme is greater than 64QAM are equal to the TBS indices in the R entries in which the MCS indices are the largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM and the MCS indices are not greater than 27, where R is a number natural.

With reference to the second aspect or any one of the possible implementations from the first to the fourth, and from the thirteenth to the seventeenth, in an eighteenth possible implementation, a range of values of an MCS index in the first MCS table is the same as a range of values of an MCS index in the second MCS table.

With reference to the second aspect or any one of the first to fourth, sixth and thirteenth to eighteenth possible implementations, in a nineteenth possible implementation, the first table MCS further includes at least one entry in the following table D1, D2, D3, D4 or D5, and any input includes an MCS index, a modulation order and a TBS index corresponding to the MCS index:

Table D1

Table D2

Table D3

Table D4

Table D5

According to a third aspect, an MCS notification method is provided, including:

receiving a first MCS index sent by a base station, where the base station determines the first MCS index according to a first MCS table; and

determine a modulation order and a code block size based on the first MCS table and the first received MCS index, where

the first MCS table includes:

an input in which a modulation scheme is greater than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second MCS table and in the that a modulation scheme is QPSK, the first combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

the modulation schemes in the second MCS table include only QPSK, 16QAM and 64QAM.

With reference to the third aspect, in a first possible implementation, determining a modulation order and a code block size according to the first MCS table and the first received MCS index includes:

determining a first TBS index and the modulation order according to the first MCS table and the first received MCS index; and

determine the code block size according to the first TBS index, a first PRB quantity and a first TBS table, where

the first PRB quantity is a PRB quantity assigned to the UE by the base station; or the first PRB quantity is the largest integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient; and

the first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table.

With reference to the first possible implementation, in a second possible implementation,

a value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a range of values of a TBS index in the first TBS table is from 0 to B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to TBS indices 0-C in the first TBS table are the same as the transmission block sizes corresponding to TBS indices 0-C in a second TBS table, where C is an integer nonnegative less than or equal to 26; a range of values of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

With reference to the first or second possible implementation, in a third possible implementation, the first TBS table includes a TBS index Y1, where for each PRB quantity, a transmission block size corresponding to the TBS index Y1 is greater than a block size transmission block size corresponding to a TBS index 25 in the second TBS table and less than a transmission block size corresponding to a TBS index 26 in the second TBS table; a range of values of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

With reference to the first or second possible implementation, in a fourth possible implementation, the first TBS table includes a TBS index Y2 and at least one entry corresponding to the TBS index Y2 in the following Table A, where any one entry includes a quantity PRB and a transmission block size corresponding to the PRB quantity:

Table A

I,

the first TBS table includes a TBS index Y3 and at least one entry corresponding to the TBS index Y3 in the following Table B1, B2, B3 or B4, where any entry includes a quantity PRB and a transmission block size corresponding to the quantity PRB:

Table B1

Table B2

Table B3

Table B4

I,

the first TBS table includes TBS indices Y4_1 to Y4_5 and at least one entry corresponding to TBS indices Y4_1 to Y4_5 in the following Table C1 or C ₂ , where any one entry includes a PRB quantity and five transmission block sizes corresponding to the PRB quantity:

Table C1

Table C ₂

With reference to the fourth aspect or any one of the first to second possible implementations, in a fifth possible implementation, the at least one entry found in the second MCS table and in which a modulation scheme is QPSK includes:

part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where a difference between the successive MCS indices corresponding to the part of the inputs are equal; either

part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where a difference between the successive MCS indices corresponding to the part of the inputs are not equal; either

part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of the inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

With reference to the fourth aspect or any one of the first to second possible implementations, in a sixth possible implementation, the at least one entry found in the second MCS table and in which a modulation scheme is 16QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of the inputs are equal; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between the successive MCS indices corresponding to the part of the inputs are not equal; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one input different from an entry in which a second MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM or

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where the part of the entries is at least one entry different from the entries in which a respective MCS index is the largest or the smallest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM.

With reference to the fourth aspect or any one of the six possible implementations above, in a seventh possible implementation, the first MCS table further includes:

at least one entry that is found in the second MCS table and in which a modulation scheme is 64QAM.

With reference to the seventh possible implementation, in an eighth possible implementation, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which an MCS index is the smallest of all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which the MCS index is the largest among all entries found in the second MCS table and in which a modulation scheme is 64QAM.

With reference to the seventh or eighth possible implementation, in a ninth possible implementation, the at least one entry in which the modulation scheme is 64QAM and which is found in the second MCS table includes:

a TBS index in an entry in which a corresponding MCS index is the smallest among all the entries found in the first MCS table and in which a modulation scheme is greater than 64QAM is the same as a TBS index in an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM; either

The TBS indices in the R entries in which the corresponding MCS indices are the smallest among the entries found in the first MCS table and in which a modulation scheme is greater than 64QAM may be equal to the TBS indices in the R entries in which the MCS indices are the largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM and the MCS indices are not greater than 27, where R is a Natural number.

With reference to the fourth aspect or any one of the nine possible implementations above, in a tenth possible implementation, a range of values of an MCS index in the first MCS table is the same as a range of values of an MCS index in the second table MCS.

With reference to the fourth aspect or any one of the ten possible implementations above, in an eleventh possible implementation, the first MCS table further includes at least one entry in Table D1, Table D2, Table D3, Table D4 or Table D5 following, and any entry includes an MCS index, and a modulation order and a TBS index corresponding to the MCS index:

Table D1

Table D2

Table D3

Table D4

Table D5

According to a fourth aspect, a CQI notification apparatus is provided, including:

an acquisition module, configured to acquire a first CQI table;

a first acquisition module, configured to learn a first CQI index according to the first CQI table acquired by the acquisition module; and

a sending module, configured to send the first CQI index acquired by the first acquisition module to a base station, so that the base station determines a first modulation and coding scheme MCS index according to the first CQI index, where

The first CQI table acquired by the acquisition module includes:

an input in which a modulation scheme is superior to a 64-state QAM quadrature amplitude modulation; and

at least one entry found in a second CQI table and in which a modulation scheme is QPSK quadrature phase shift keying, where the at least one entry in which a modulation scheme is QPSK includes a combination, different of a first combination, formed by at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first combination is N entries found in the second CQI table and in which the CQI indices corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where

the modulation schemes in the entries in the second CQI table include only QPSK, 16QAM and 64QAM.

With reference to the fourth aspect, in a first possible implementation, the at least one entry, in which a modulation scheme is QPSK and which is found in the second CQI table, in the first CQI table acquired by the acquisition module includes:

part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of the inputs are equal; either

part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of the inputs are not equal; either

part of the inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one input different from an entry in which a corresponding CQI index is the largest among all the entries found in the second CQI table and in which a modulation scheme is QPSK; either

part of the inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one input different from an entry in which a corresponding CQI index is the largest among all entries found in the second CQI table and in which a modulation scheme is QPSK.

With reference to the fourth aspect, in a second possible implementation, the at least one entry, in which a modulation scheme is 16QAM and which is found in the second CQI table, in the first CQI table acquired by the acquisition module includes:

all entries found in the second CQI table and in which a modulation scheme is 16QAM; either

at least one entry different from an entry in which a corresponding CQI index is the smallest among all the entries found in the second CQI table and in which a modulation scheme is 16QAM.

With reference to the fourth aspect or to any one of the two possible implementations above, in a third possible implementation, the first CQI table acquired by the acquisition module further includes:

at least one entry that is found in the second CQI table and in which a modulation scheme is 64QAM.

With reference to the third possible implementation, in a fourth possible implementation, the at least one entry in which a modulation scheme is 64QAM includes:

all entries found in the second CQI table and for which a modulation scheme is 64QAM; either

part of the entries found in the second CQI table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which a corresponding CQI index is the largest of between all entries found in the second CQI table and in which a modulation scheme is 64QAM.

With reference to the fourth aspect, in a fifth possible implementation, a spectral efficiency at an input in which a corresponding CQI index is the smallest among the entries found in the first CQI table acquired by the acquisition module and in the that a modulation scheme is greater than 64QAM is equal to a spectral efficiency at an input in which a corresponding CQI index is the largest among all the entries found in the second CQI table and in which a modulation scheme is 64QAM; either

the spectral efficiencies at the T entries in which the corresponding CQI indices are the smallest among the entries found in the first CQI table and in which a modulation scheme is greater than 64QAM are equal to or approximately equal to the efficiencies spectral values in the T entries in which the corresponding CQI indices are the largest among all the entries found in the second CQI table and in which a modulation scheme is 64QAM, where T is equal to any natural number of fifteen.

With reference to the fourth aspect, in a sixth possible implementation, a spectral efficiency at an input in which a corresponding CQI index is the largest among the entries found in the first CQI table and in which a modulation scheme is greater than 64QAM is:

4/3 times a spectral efficiency at an entry in which a corresponding CQI index is the largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM;

8 times a maximum code rate of a terminal, where the maximum code rate is a positive real number less than 1; either

7.4063; either

7,432.

With reference to the fourth aspect, in a seventh possible implementation, the spectral efficiencies in arranged in ascending order; that the spectral efficiencies in arranged in ascending order of the spectral efficiencies, a difference between a spectral efficiency in each input and a spectral efficiency in a respective preceding input is equal to the same constant; that the spectral efficiencies in inputs arranged in ascending order of spectral efficiencies, a difference between a spectral efficiency at each input and a spectral efficiency at a respective preceding input is in a range from a constant minus a preset value to the constant plus the preset value; and X is an integer greater than 2;

a spectral efficiency on an input in which the corresponding CQI index is the smallest among the in which the corresponding CQI index is the largest among all the entries found in the second CQI table and in which a modulation scheme is 64QAM; and a spectral efficiency on an entry in which a corresponding CQI index is the largest among the X entries found in the first CQI table and in which the CQI indices are the largest is:

4/3 times the spectral efficiency at the input for which the corresponding CQI index is the largest among all entries found in the second CQI table and for which a modulation scheme is 64QAM; or 8 times the maximum code rate of a terminal, where the maximum code rate is a positive real number less than 1; either

7.4063; either

7,432.

With reference to the fourth aspect or any one of the first to second, sixth and seventh possible implementations, in an eighth possible implementation, the spectral efficiencies at the entries found in the first CQI table and for which a modulation scheme is superior to 64QAM include at least one of the following groups of numerical values:

{5.5547 6.18056,80627.432},

{6.1805 6.80627.432},

{5.5547 6.17976,80477,4297},

{6.1797 6.80477.4297},

{5.5547 6.17196.7891 7.4063},

{6.1719 6.7891 7.4063},

{5.5547 6.49347.432},

{6.4934 7.432},

{5.5547 6.49227.4297},

{6.4922 7.4297},

{5.5547 6.48057.4063},

{6.4805 7.4063},

{5.5547 6.48447.4063},

{6.4844 7.4063 },

{5.5547 6.02406.4934 6.96277.432},

{6.0234 6.49226.9609 7.4297},

{5.5547 6.02346.4922 6.96097.4297},

{6.0176 6.48056.9434 7.4063},

{5.5547 6.01766.4805 6.94347.4063},

{6.0176 6.48056.9434 7.4063},

{5.5547 6.01566.4844 6.94537.4063},

{6.0156 6.48446.9453 7.4063},

{5.5547 5.93026.3056 6.6811 7.05657.432},

{5.9302 6.30566.6811 7.05657.432},

{5.5547 5.92976.3047 6.67977.0547 7.4297},

{5.9297 6.30476.6797 7.05477.4297},

{5.5547 5.92506.2953 6.66567.0360 7.4063},

{5.9250 6.29536.6656 7.03607.4063},

{5.5547 5.92196.2969 6.6641 7.0391 7.4063}, and

{5.9219 6.29696.6641 7.0391 7.4063}.

With reference to the fourth aspect, in a ninth possible implementation, a range of values of a CQI index in the first CQI table acquired by the acquisition module is the same as a range of values of a CQI index in the second CQI table.

According to a fifth aspect, an MCS notification apparatus is provided, including:

an acquisition module, configured to acquire a first CQI table and a first MCS table;

a receiving module, configured to receive a first channel quality indicator CQI index sent by an EU terminal, where the EU determines the first CQI index according to the first CQI table;

a determination module, configured to determine a first MCS index according to the first CQI table acquired by the acquisition module, the first MCS table acquired by the acquisition module and the first CQI index received by the receiving module; and

a sending module, configured to send the first determined MCS index to the EU, where

The first CQI table acquired by the acquisition module includes:

an input in which a modulation scheme is greater than 64QAM; and

The first MCS table acquired by the acquisition module includes:

an input in which a modulation scheme is greater than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where at least one entry in which a modulation scheme is QPSK includes a combination, different from a second combination, formed by the at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the second combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

the modulation schemes in the second MCS table include only QPSK, 16QAM and 64QAM.

With reference to the fifth aspect, in a first possible implementation, the first CQI table further includes:

at least one entry found in a second CQI table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first combination is N entries found in the second CQI table and in which the CQI indices corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where

the modulation schemes in the second CQI table include only QPSK, 16QAM and 64QAM.

With reference to the fifth aspect or the first possible implementation, in a second possible implementation, the determination module is specifically configured to:

determining a first TBS index and the first MCS index according to a first acquired PRB quantity, the first CQI table acquired by the acquisition module, the first MCS table acquired by the acquisition module, a first TBS table and the first CQI index received, where

the first PRB quantity is a PRB quantity assigned to the UE by a base station; or the first PRB quantity is the largest integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient; and

the first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table.

With reference to the second possible implementation, in a third possible implementation,

a value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a range of values of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to TBS indices 0-C in the first TBS table are the same as the transmission block sizes corresponding to TBS indices 0-C in a second TBS table, where C is an integer non-negative less than or equal to 26; a range of values of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

With reference to the second possible implementation, in a fourth possible implementation, the determination module includes:

a first determination submodule, configured to determine, according to the first CQI table acquired by the acquisition module and the first CQI index received, a first modulation scheme and a first spectral efficiency that correspond to the first CQI index received;

a second determination submodule, configured to learn, according to the first acquired PRB quantity and the first spectral efficiency determined by the first determination submodule, a first transmission block size transmitted to the UE; and

obtain, according to the first TBS table, the first TBS index found in the first TBS table and corresponding to the first transmission block size and the first PRB quantity.

Referring to any one of the second to fourth possible implementations, in a fifth possible implementation, the first TBS table includes a TBS index Y1, where for each PRB quantity, a transmission block size corresponding to the TBS index Y1 is greater than a transmission block size corresponding to a TBS index 25 in the second TBS table and less than a transmission block size corresponding to a TBS index 26 in the second TBS table; a range of values of an index ^t B ^s in the second table TBS is 0-26, and the second table TBS includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

With reference to any one of the second to fourth possible implementations, in a sixth possible implementation, the first TBS table includes a TBS index Y2 and at least one entry corresponding to the TBS index Y2 in the following Table A, where any one entry includes a PRB quantity and a transmission block size corresponding to the PRB quantity:

Table A

I,

the first TBS table includes a TBS index Y3 and at least one entry corresponding to the TBS index Y3 in the following Table B1, B2, B3 or B4, where any entry includes a quantity PRB and a transmission block size corresponding to the quantity PRB:

Table B1

Table B2

Table B3

Table B4

I,

the first TBS table includes TBS indices Y4_1 to Y4_5 and at least one entry corresponding to TBS indices Y4_1 to Y4_5 in the following Table C1 or C ₂ , where any one entry includes a PRB quantity and five transmission block sizes corresponding to the PRB quantity:

Table C1

Table C ₂

With reference to any one of the above six possible implementations, in a seventh possible implementation, the at least one entry found in the second CQI table and in which a modulation scheme is QPSK includes:

part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of the inputs are equal; or part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where a difference between the successive CQI indices corresponding to the part of the entries are not equal; or part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one different input of an entry in which a corresponding CQI index is the largest among all the entries found in the second CQI table and in which a modulation scheme is QPSK; or part of the inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one different input of an entry in which a corresponding CQI index is the largest among all entries found in the CQI table and in which a modulation scheme is QPSK.

With reference to any one of the six possible implementations above, in an eighth possible implementation, the at least one entry, in which a modulation scheme is 16QAM and which is found in the second CQI table, in the first CQI table acquired by The acquisition module includes:

all entries found in the second CQI table and in which a modulation scheme is 16QAM; or at least one entry different from an entry in which a corresponding CQI index is the smallest among all the entries found in the second CQI table and in which a modulation scheme is 16QAM. With reference to any one of the eight possible implementations above, in a ninth possible implementation, the first CQI table acquired by the acquisition module further includes:

at least one entry that is found in the second CQI table and in which a modulation scheme is 64QAM. With reference to the ninth possible implementation, in a tenth possible implementation, the at least one entry in which a modulation scheme is 64QAM includes:

all entries found in the second CQI table and for which a modulation scheme is 64QAM; or part of the entries found in the second CQI table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which the corresponding CQI index is the largest from among all the entries found in the second CQI table and in which a modulation scheme is 64QAM.

With reference to any one of the ten possible implementations above, in an eleventh possible implementation, a spectral efficiency at an entry in which a corresponding CQI index is the smallest among the entries found in the first CQI table acquired by the acquisition module and in which a modulation scheme is greater than 64QAM is equal to a spectral efficiency at an input in which a corresponding CQI index is the largest among all the entries found in the second CQI table and in which one modulation scheme is 64QAM; either

the spectral efficiencies at the T entries in which the corresponding CQI indices are the smallest among the entries found in the first CQI table and in which a modulation scheme is greater than 64QAM are equal to or approximately equal to the efficiencies spectral values at the T entries in which the corresponding CQI indices are the largest among all the entries found in the second CQI table and in which a modulation scheme is 64QAM, where T is equal to any natural number of 1 -5.

With reference to any one of the eleven possible implementations above, in a twelfth possible implementation, a range of values of a CQI index in the first CQI table acquired by the acquisition module is the same as a range of values of a CQI index in the second CQI table.

With reference to the fifth aspect or any one of the four possible implementations above, in a thirteenth possible implementation, the at least one entry, in which a modulation scheme is QPSK and which is found in the second table MCS, in the first table MCS acquired by the acquisition module includes: part of the entries that are in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of the inputs are equal; either part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where a difference between the successive MCS indices corresponding to the part of the inputs are not equal; either

part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of the inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

With reference to the fifth aspect or any one of the four possible implementations above, in a fourteenth possible implementation, the at least one entry, in which a modulation scheme is 16QAM and which is found in the second MCS table, in the first table CQI acquired by the acquisition module includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of the inputs are equal; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between the successive MCS indices corresponding to the part of the inputs are not equal; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one input different from an entry in which a second MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where the part of the entries is at least one entry different from the entries in which a respective MCS index is the largest or the smallest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM.

With reference to the fifth aspect or any one of the first to fourth, thirteenth and fourteenth possible implementations, in a fifteenth possible implementation, the first MCS table acquired by the acquisition module further includes:

at least one entry that is found in the second MCS table and in which a modulation scheme is 64QAM.

With reference to the fifteenth possible implementation, in a sixteenth possible implementation, the at least one entry, in which a modulation scheme is 64QAM and which is found in the second MCS table, in the first CQI table acquired by the acquisition module includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which an MCS index is the smallest of all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which the MCS index is the largest among all entries found in the second MCS table and in which a modulation scheme is 64QAM.

With reference to the fifteenth or sixteenth possible implementation, in a seventeenth possible implementation, a TBS index on an entry in which a corresponding MCS index is the smallest among all the entries that are in the first MCS table and in which a modulation scheme is greater than 64QAM is the same as a TBS index in an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM; either

The TBS indices in the R entries in which the corresponding MCS indices are the smallest among the entries found in the first MCS table and in which a modulation scheme is greater than 64QAM may be equal to the TBS indices in the R entries in which the MCS indices are the largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM and the MCS indices are not greater than 27, where R is a Natural number.

With reference to the fifth aspect or any one of the above four possible implementations and the thirteenth to seventeenth possible implementations, in an eighteenth possible implementation, a range of values of an MCS index in the first MCS table acquired by the acquisition module is the same than a range of values of an MCS index in the second MCS table.

With reference to the fifth aspect or any one of the four possible implementations above, and the sixth and thirteenth to eighteenth possible implementations, in a nineteenth possible implementation, the first table MCS further includes at least one entry in the following table D1, D2, D3 , D4 or D5 and any input includes an MCS index and a modulation order and a TBS index that correspond to the MCS index:

Table D1

Table D2

Table D3

Table D4

Table D5

According to a sixth aspect, an MCS notification apparatus is provided, including:

an acquisition module, configured to acquire a first MCS table;

a receiving module, configured to receive a first MCS index sent by a base station, where the base station determines the first MCS index according to the first MCS table acquired by the acquisition module; and a determination module, configured to determine a modulation order and a code block size according to the first MCS table acquired by the acquisition module and the first MCS index received by the reception module, where

The first MCS table acquired by the acquisition module includes:

an input in which a modulation scheme is greater than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the first combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

the modulation schemes in the second MCS table include only QPSK, 16QAM and 64QAM.

With reference to the sixth aspect, in a first possible implementation, the determination module includes:

a first determination submodule, configured to determine a first TBS index and a modulation order according to the first MCS table acquired by the acquisition module and the first received MCS index; and

a second determination submodule, configured to determine the size of the code block according to the first index TBS, a first quantity PRB and a first table TBS, where

the first PRB quantity is a PRB quantity assigned to the UE by the base station; or the first PRB quantity is the largest integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient; and

the first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table.

With reference to the first possible implementation, in a second possible implementation, a range of values of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a range of values of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to TBS indices 0-C in the first TBS table are the same as the transmission block sizes corresponding to TBS indices 0-C in a second TBS table, where C is an integer non-negative less than or equal to 26; a range of values of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

With reference to the first or second possible implementation, in a third possible implementation, the first TBS table includes a TBS index Y1, where for each PRB quantity, a transmission block size corresponding to the TBS index Y1 is greater than a block size transmission block size corresponding to a TBS index 25 in the second TBS table and less than a transmission block size corresponding to a TBS index 26 in the second TBS table; a range of values of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

With reference to the first or second possible implementation, in a fourth possible implementation, the first TBS table includes a TBS index Y2 and at least one entry corresponding to the TBS index Y2 in the following Table A, where any one entry includes a quantity PRB and a transmission block size corresponding to the PRB quantity:

Table A

I,

the first TBS table includes a TBS index Y3 and at least one entry corresponding to the TBS index Y3 in the following Table B1, B2, B3 or B4, where any entry includes a quantity PRB and a transmission block size corresponding to the quantity PRB:

Table B1

Table B2

Table B3

Table B4

I,

The first TBS table includes TBS indices Y4_1 to Y4_5 and at least one entry corresponding to TBS indices Y4_1 to Y4_5 in the following Table C1 or C ₂ , where any one entry includes a PRB quantity and five transmission block sizes corresponding to the PRB quantity:

Table C1

Table C ₂

With reference to the sixth aspect or any one of the two possible implementations above, in a fifth possible implementation, the at least one entry found in the second MCS table and in which a modulation scheme is QPSK includes:

part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where a difference between the successive MCS indices corresponding to the part of the inputs are equal; either

part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where a difference between the successive MCS indices corresponding to the part of the inputs are not equal; either

part of the entries found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of the inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

With reference to the sixth aspect or to any one of the two possible implementations above, in a sixth possible implementation, the at least one entry found in the second MCS table and in which a modulation scheme is 16QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of the inputs are equal; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between the successive MCS indices corresponding to the part of the inputs are not equal; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of the inputs are discontinuous, and the part of the inputs is at least one input different from an entry in which a second MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of the inputs are continuous, and the part of the inputs is at least one input different from an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where the part of the entries is at least one entry different from the entries in which a respective MCS index is the largest or the smallest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM.

With reference to the sixth aspect or any one of the six possible implementations above, in a seventh possible implementation, the first MCS table acquired by the acquisition module further includes:

at least one entry that is found in the second MCS table and in which a modulation scheme is 64QAM.

With reference to the seventh possible implementation, in an eighth possible implementation, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which an MCS index is the smallest of all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of the entries found in the second MCS table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in which the MCS index is the most largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM.

With reference to the seventh or eighth possible implementation, in a ninth possible implementation,

a TBS index in an entry in which a corresponding MCS index is the smallest among all the entries found in the first MCS table and in which a modulation scheme is greater than 64QAM is the same as a TBS index in an entry in which an MCS index is the largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM; either

The TBS indices in the R entries in which the corresponding MCS indices are the smallest among the entries found in the first MCS table and in which a modulation scheme is greater than 64QAM may be equal to the TBS indices in the R entries in which the MCS indices are the largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM and the MCS indices are not greater than 27, where R is a Natural number.

With reference to the sixth aspect or any one of the nine possible implementations above, in a tenth possible implementation, a range of values of an MCS index in the first MCS table acquired by the acquisition module is the same as a range of values of a MCS index in the second MCS table.

With reference to the sixth aspect or any one of the ten possible implementations above, in an eleventh possible implementation, the first MCS table further includes at least one entry in the following table D1, D2, D3, D4 or D5, and any entry includes a MCS index, and a modulation order and a TBS index that correspond to the MCS index:

Table D1

Table D2

Table D3

Table D4

Table D5

According to a seventh aspect, a CQI channel quality indicator notification apparatus is provided, including:

a memory and a processor connected to the memory; and also includes a transmitter, where

the memory stores a group of program code, and the processor is configured to call the program code stored in the memory, in order to execute the method according to the first aspect; and

The transmitter is configured to send the program code that is stored in the memory and that is called by the processor, in order to execute the method according to the first aspect or any possible implementation of the first aspect to obtain a first CQI index.

According to an eighth aspect, a modulation and coding scheme MCS notification apparatus is provided, including:

a memory and a processor connected to the memory; and also includes a transmitter and a receiver, where

the memory stores a group of program code, and the processor is configured to call the program code stored in the memory, in order to execute the method according to the second aspect of the claims or any possible implementation of the second aspect; and

the receiver is configured to receive a first CQI index sent by an EU, and the transmitter is configured to send the program code that is stored in the memory and that is called by the processor, in order to execute the method according to the second claims aspect or any possible implementation of the second aspect to obtain a first MCS index.

According to a ninth aspect, an MCS modulation and coding scheme notification apparatus is provided, including:

a memory and a processor connected to the memory; and also includes a receiver, where

the memory stores a group of program code, and the processor is configured to call the program code stored in the memory, in order to execute the method according to the third aspect or any possible implementation of the third aspect; and

The receiver is configured to receive a first MCS index sent by a base station.

The present invention provides a method and apparatus for notifying a channel quality indicator and a modulation and coding scheme, which allows a UE to select a modulation scheme higher than 64QAM and notify a base station by using a method to send a CQI index, and also allows the base station to select a modulation scheme higher than 64QAM and notify the UE by using a method to send an MCS index, thereby improving system performance.

Embodiments of the present invention provide a method and apparatus for notifying a channel quality indicator and a modulation and coding scheme, which may further allow a UE to select a relatively low spectral efficiency and notify a base station by using of a method for sending a CQI index, and also allow the base station to select a relatively small transmission block size and notify the UE by using a method for sending an MCS index, thus ensuring that a UE can also adapt to a sudden low signal-to-noise ratio situation when using a high-order modulation scheme, i.e. ensuring that the EU can adapt to a drastic change in signal-to-noise ratio.

Brief description of the drawings

In order to describe the technical solutions in the embodiments of the present invention more clearly, the accompanying drawings required to describe the embodiments or the prior art are briefly introduced below. On the face of it, the accompanying drawings in the following description merely show some embodiments of the present invention, and a person of ordinary skill in the art may even derive other drawings from said accompanying drawings without creative efforts.

Figure 1 is a schematic diagram of a CQI reporting method according to an embodiment of the present invention;

Figure 2 is a schematic diagram of an MCS notification method according to an embodiment of the present invention;

Figure 3 is a schematic diagram of another MCS notification method according to an embodiment of the present invention;

Figure 4 is a schematic diagram of another MCS notification method according to an embodiment of the present invention;

Figure 5 is a schematic diagram of a CQI notification apparatus according to an embodiment of the present invention;

Figure 6 is a schematic diagram of an MCS notification apparatus according to an embodiment of the present invention;

Figure 7 is a schematic diagram of another MCS notification apparatus according to an embodiment of the present invention;

Figure 8 is a schematic diagram of another MCS notification apparatus according to an embodiment of the present invention;

Figure 9 is a schematic diagram of another CQI notification apparatus according to an embodiment of the present invention;

Figure 10 is a schematic diagram of another MCS notification apparatus according to an embodiment of the present invention;

Figure 11 is a schematic diagram of another MCS notification apparatus according to an embodiment of the present invention; and

Figure 12 is a schematic diagram of another MCS notification apparatus according to an embodiment of the present invention.

Description of the achievements

The technical solutions in the embodiments of the present invention are described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are simply some but not all embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art from the embodiments of the present invention without creative efforts will fall within the protective scope of the present invention.

A self-adaptive process of a physical downlink shared channel (PDSCH) is that:

first, a user equipment (UE) estimates channel information that is used to measure channel state information (CSI); The EU then calculates a signal-to-interference plus noise ratio (SINR) using the channel information and based on an optimal category indication (RI) and/or an optimal precoding matrix indication (PMI); and finally, the UE obtains a corresponding channel quality indicator (CQI) according to the SINR and reports a CQI value to a base station.

Furthermore, the modulation order in the present invention corresponds to a modulation scheme. For example, if a modulation scheme is quadrature phase shift (QPSK), the modulation order is 2; if a modulation scheme is 16QAM, the modulation order is 4; if a modulation scheme is 64QAM, the modulation order is 6; and if a modulation scheme is 256QAM, the modulation order is 8.

With reference to an accompanying drawing, a CQI reporting method according to an embodiment of the present invention is described in detail below.

As shown in Figure 1, the stages of the CQI notification method are as follows:

S 101: An EU learns a first CQI index according to an acquired first CQI table.

The first CQI table may be predefined in a protocol, preset by the EU in compliance with a protocol, or prestored by the EU; or is selected by the EU from at least two predefined tables according to a downlink channel state; or it can be reported by a base station to the EU. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to an uplink channel state or a downlink channel state, and notify the EU about the selected table. A CQI table is used to describe a mapping relationship between CQI indexes and entries. The mapping relationship in the CQI table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the CQI table in the present invention is not intended to be limited to the format described herein, that is, the CQI table can have various combinations, as long as it can present a mapping relationship between CQI indexes and entries. All combinations will fall within the scope of protection of the present invention.

Specifically, the EU determines a first spectral efficiency according to a first measured SINR, and then acquires, according to the first spectral efficiency and the first CQI table, the first CQI index corresponding to the first spectral efficiency. The first CQI table is pre-stored by the EU.

The first CQI table may include:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second CQI table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK may include a combination, different from a first combination, formed for the at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first combination is N entries found in the second CQI table and in which the CQI indices corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where

the modulation schemes in the entries in the second CQI table may only include QPSK, 16QAM and 64QAM.

That is, the first CQI table includes an entry in which a modulation scheme is higher than 64QAM; and the first CQI table may further include at least one entry that is found in the second CQI table and in which a modulation scheme is QPSK, where entries that are found in the first CQI table and in which a modulation scheme is QPSK cannot simply be N entries found in the second CQI table and in which a modulation scheme is QPSK and the corresponding CQI indices are continuous and largest, and N can be equal to 3, or N can be a positive integer less than 4, or N can be a positive integer; and/or the first CQI table further includes at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM.

Furthermore, the values of N in the present invention are only some examples and are not intended to limit the present invention.

The modulation schemes in the entries in the second CQI table merely include QPSK, 16QAM and 64QAM; an entry in the first CQI table may refer to a modulation scheme, a code rate and a spectral efficiency that correspond to a CQI index in the first CQI table; and an entry in the second CQI table refers to a modulation scheme, a code rate and a spectral efficiency that correspond to a CQI index in the second CQI table. Apparently, an entry in the present invention may be set according to uplink status information or downlink status information, and the above entries in the first CQI table and second CQI table in the present invention are only examples and are not They are intended to limit the present invention.

Furthermore, the combination may be a combination formed by the at least one entry found in the second CQI table and in which a modulation scheme is QPSK. In an example of the second CQI table shown in Table 1, there are 26-1 =63 combinations formed by the at least one entry found in the second CQI table and in which one modulation scheme is QPSK. For example, the join may be a join formed by an entry, found in the second CQI table, which corresponds to the CQI index 6, or it may be a join formed by entries, in the second CQI table, corresponding, respectively, to the CQI indices 4, 5 and 6, or it can be a combination formed by entries, in the second CQI table, that correspond, respectively, to the CQI indices 3, 5 and 6, or similar.

Specifically, there can be the following three types of first CQI tables:

a first type of first CQI table: it simply includes an entry in which a modulation scheme is QPSK and an entry in which a modulation scheme is higher than 64QAM;

a second type of first CQI table: it simply includes an entry in which a modulation scheme is 16QAM and an entry in which a modulation scheme is higher than 64QAM; and

a third type of first CQI table: it simply includes an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is 16QAM, and an entry in which a modulation scheme is higher than 64QAM.

There may be various types of first CQI tables in the present invention, and the above three types of first CQI tables are only examples for the sake of understanding of the present invention, and are not intended to limit the present invention.

For the sake of understanding, the following CQI table (namely the second CQI table) is used as an example for the sake of description:

Table 1

The first CQI table includes an entry in which a modulation scheme is higher than 64QAM. For example, one input or multiple inputs in which a modulation scheme is higher than 64QAM may be included. For example, a modulation scheme that is higher than 64QAM and is included in the first CQI table may be 128QAM, 256QAM and/or the like. If the first CQI table simply includes a modulation scheme, the modulation scheme can be any of 128QAM, 256QAM, and other higher modulation schemes; and if the first CQI table includes multiple modulation schemes, the multiple modulation schemes included in the first CQI table may be one or more of 128QAM, 256QAM, and other higher modulation schemes. For example, as shown in the following table, the first CQI table may include entries in which the modulation schemes are higher than 64QAM:

Table 2

It should be noted that, to minimize changes to the prior art during a specific implementation process, preferably, a value range of the CQI index in the first CQI table and a value range of the CQI index in the second CQI table can be the same and , specifically, can be 0-15. Apparently, a value range of the CQI index in the first CQI table may also be greater than a value range of the CQI index in the second CQI table, for example, a value range of the CQI index in the first CQI table may also be 0-20. The value range of the CQI index in the present embodiment of the present invention is only an example for the sake of understanding of the present invention and is not intended to limit the present invention.

First Type of First CQI Table: The first type of first CQI table simply includes an entry in which a modulation scheme is QPSK and an entry in which a modulation scheme is higher than 64QAM.

The first CQI table may include one entry or multiple entries in which a modulation scheme is higher than 64QAM, and each entry in which a modulation scheme is higher than 64QAM includes a modulation scheme, a code rate and a spectral efficiency, and has a corresponding CQI index.

The first CQI table may further include part of entries found in the second CQI table and in which a modulation scheme is QPSK, specifically, part of six entries, in the second CQI table (namely, Table 1), which They correspond, respectively, to CQI indices 1-6 and in which a modulation scheme is QPSK; and the entries found in the first CQI table and in which a modulation scheme is QPSK are not N entries found in the second CQI table and in which a modulation scheme is QPSK and the corresponding CQI indices are continuous and the largest, where N is equal to 3. In other words, the entries that are in the first CQI table and in which a modulation scheme is QPSK cannot merely be entries, in the second CQI table, that correspond , respectively, to CQI indices 4, 5 and 6.

Alternatively, the first CQI table may further include part of the entries found in the second CQI table and in which a modulation scheme is QPSK, specifically, part of six entries, in the second CQI table, which correspond , respectively, to CQI indices 1-6 and in which a modulation scheme is QPSK; and entries found in the first CQI table and in which a modulation scheme is QPSK are not N entries found in the second CQI table and in which a modulation scheme is QPSK and the corresponding CQI indices are continuous and the largest, where N is a positive integer and N is less than 4, which means that N can be equal to 1,2 or 3;

if N is equal to 1, an entry found in the first CQI table and in which a modulation scheme is QPSK cannot merely be an entry found in the second CQI table and corresponding to CQI index 6; either

if N is equal to 2, the entries found in the first CQI table and in which a modulation scheme is QPSK cannot merely be entries found in the second CQI table and which correspond, respectively, to the CQI indices 5 and 6; either

if N is equal to 3, the entries found in the first CQI table and in which a modulation scheme is QPSK cannot merely be entries found in the second CQI table and which correspond, respectively, to the CQI indices 4, 5 and 6.

Alternatively, the first CQI table also includes part of the entries that are in the second CQI table and in which a modulation scheme is QPSK, specifically, part of six entries, in the second CQI table, which correspond, respectively, to CQI indices 1-6 and in which a modulation scheme is QPSK; and the entries found in the first CQI table and in which a modulation scheme is QPSK are not N entries found in the second CQI table and in which a modulation scheme is QPSK and the corresponding CQI indices are continuous and the largest, where N is a positive integer, which means that a value range of N can be 1 -5.

If N is equal to 1, an entry found in the first CQI table and in which a modulation scheme is QPSK cannot merely be an entry found in the second CQI table and corresponding to a CQI index 6; either

If N is equal to 2, the entries found in the first CQI table and in which a modulation scheme is QPSK cannot merely be entries in the second CQI table, which correspond, respectively, to the CQI indices 5 and 6; either

If N is equal to 3, the entries found in the first CQI table and in which a modulation scheme is QPSK cannot merely be entries in the second CQI table, which correspond, respectively, to the CQI indices 4, 5 and 6; either

If N is equal to 4, the entries found in the first CQI table and in which a modulation scheme is QPSK cannot merely be entries in the second CQI table, which correspond, respectively, to the CQI indices 3, 4, 5 and 6; either

If N is equal to 5, the entries found in the first CQI table and in which a modulation scheme is QPSK cannot merely be entries in the second CQI table, which correspond, respectively, to the CQI indices 2, 3, 4, 5 and 6.

Furthermore, the values of N in the present invention are only some examples and are not intended to limit the present invention.

Alternatively, the entries found in the first CQI table and in which a modulation scheme is QPSK include part of the entries found in the second CQI table and in which a modulation scheme is QPSK, and a difference between the successive CQI indices corresponding to the input part is the same.

For example, if the entries found in the first CQI table and in which a modulation scheme is QPSK include three of the entries found in the second CQI table and in which a modulation scheme is QPSK, the entries that are found in the first CQI table and in which a modulation scheme is QPSK may include entries, in the second CQI table, that correspond, respectively, to the CQI indices 1, 3 and 5, or the entries that are found in The first CQI table and in which a modulation scheme is QPSK may include entries in the second CQI table, which correspond, respectively, to CQI indices 2, 4 and 6.

Still alternatively, the entries found in the first CQI table and in which a modulation scheme is QPSK include part of the entries found in the second CQI table and in which a modulation scheme is QPSK, and a The difference between the successive CQI indices corresponding to the input part is not the same.

For example, if the entries found in the first CQI table and in which a modulation scheme is QPSK include three of the entries found in the second CQI table and in which a modulation scheme is QPSK, the entries that are found in the first CQI table and in which a modulation scheme is QPSK may include entries, in the second CQI table, that correspond, respectively, to the CQI indices 1, 4 and 6, or the entries that are found in the first CQI table and in which a modulation scheme is QPSK may include entries, in the second CQI table, that correspond, respectively, to the CQI indices 2, 5 and 6;

Alternatively, if the entries found in the first CQI table and in which a modulation scheme is QPSK include four of the entries found in the second CQI table and in which a modulation scheme is QPSK, the Entries found in the first CQI table and in which a modulation scheme is QPSK may include entries, in the second CQI table, that correspond, respectively, to the CQI indices 1, 3, 4 and 6, or the entries that are found in the first CQI table and in which a modulation scheme is QPSK may include entries in the second CQI table, which correspond, respectively, to the CQI indices 1, 2, 4 and 6;

Alternatively, if the entries found in the first CQI table and in which a modulation scheme is QPSK include five of the entries found in the second CQI table and in which a modulation scheme is QPSK, the Entries that are in the first CQI table and in which a modulation scheme is QPSK may include entries, in the second CQI table, that correspond, respectively, to CQI indices 1, 2, 3, 4 and 6.

Alternatively, the entries found in the first CQI table and in which a modulation scheme is QPSK include part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where the indices CQI corresponding to the input part are discontinuous, and the input part is at least one entry different from an entry in which a corresponding CQI index is largest among all the entries found in the second CQI table and in which One modulation scheme is QPSK.

For example, entries found in the first CQI table and in which a modulation scheme is QPSK may include entries in the second CQI table that correspond, respectively, to CQI indices 1 and 3, or entries that are found in the first CQI table and in which a modulation scheme is QPSK may include entries in the second CQI table, which correspond, respectively, to CQI indices 2, 4 and 5.

Still alternatively, the entries found in the first CQI table and in which a modulation scheme is QPSK include part of the entries found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the input part are continuous, and the input part is at least one entry different from an entry in which a corresponding CQI index is largest among all the entries that are in the CQI table and in which One modulation scheme is QPSK.

For example, entries found in the first CQI table and in which a modulation scheme is QPSK may include entries in the second CQI table that correspond, respectively, to CQI indices 2, 3 and 4, or the Entries that are in the first CQI table and in which a modulation scheme is QPSK may include entries, in the second CQI table, that correspond, respectively, to CQI indices 2, 3, 4 and 5.

Second Type of First CQI Table: The first type of CQI table simply includes an entry in which a modulation scheme is 16QAM and an entry in which a modulation scheme is higher than 64QAM.

The first CQI table may include one entry or multiple entries in which a modulation scheme is higher than 64QAM, and each entry in which a modulation scheme is higher than 64QAM includes a modulation scheme, a code rate and a spectral efficiency, and has a corresponding CQI index.

The first CQI table further includes all entries found in the second CQI table and in which a modulation scheme is 16QAM.

By way of example, the first CQI table further includes three entries, in the second CQI table, which correspond, respectively, to CQI indices 7-9 and in which a corresponding modulation scheme is 16QAM.

Alternatively, specifically, the first CQI table further includes part of entries that are found in the second CQI table and in which a modulation scheme is 16QAM, where the part of entries is at least one entry different from an entry in the which a corresponding CQI index is smallest among all the entries found in the second CQI table and in which a modulation scheme is 16QAM.

As an example, entries found in the first CQI table and in which a modulation scheme is 16QAM may include entries in the second CQI table that correspond, respectively, to CQI indices 8 and 9, or the Entries that are in the first CQI table and in which a modulation scheme is 16QAM may further include an entry, in a second CQI table, that corresponds to CQI index 8 or 9.

Third CQI first table type: An entry in which a modulation scheme is 16QAM is added to the first CQI first table type to obtain the third CQI first table type. The third type of first CQI table simply includes an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is 16QAM, and an entry in which a modulation scheme is higher than 64QAM. An entry that is included in the third type of the first CQI table and in which a modulation scheme is 16QAM may be equal to an entry that is included in the second type of the first CQI table and in which a modulation scheme It is 16QAM.

Specifically, the first CQI table further includes all entries found in the second CQI table and in which a modulation scheme is 16QAM.

Alternatively, specifically, the first CQI table further includes part of entries that are found in the second CQI table and in which a modulation scheme is 16QAM, where the part of entries is at least one entry different from an entry in the which a corresponding CQI index is smallest among all the entries found in the second CQI table and in which a modulation scheme is 16QAM.

Likewise, the first CQI table further includes at least one entry that is found in the second CQI table and in which a modulation scheme is 64QAM.

That is, an entry in which a modulation scheme is 64QAM is added to the first type of first CQI table to obtain a fourth type of first CQI table; In the present case, the fourth type of first CQI table includes an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is higher than 64QAM, and an entry in which a modulation scheme is 64QAM;

alternatively, an entry in which a modulation scheme is 64QAM is added to the second type of first CQI table to obtain a fifth type of first CQI table; In the present case, the fifth type of first CQI table includes an entry in which a modulation scheme is higher than 64QAM, an entry in which a modulation scheme is 16QAM, and an entry in which a modulation scheme is 64QAM;

still alternatively, an entry in which a modulation scheme is 64QAM is added to the third type of first CQI table to obtain a sixth type of first CQI table; In the present case, the sixth type of first CQI table includes an entry in which a modulation scheme is higher than 64QAM, an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is 16QAM and an input in which a modulation scheme is 64QAM.

In the fourth, fifth or sixth type of the first CQI table, an entry in which a modulation scheme is 64QAM is as follows:

Specifically, the first CQI table further includes all entries found in the second CQI table and in which a modulation scheme is 64QAM.

By way of example, six entries are included in the second CQI table, which correspond, respectively, to the second CQI indices 10-15 and in which a corresponding modulation scheme is 64QAM.

Alternatively, specifically, the first CQI table further includes part of entries that are found in the second CQI table and in which a modulation scheme is 64QAM, where the part of entries is at least one entry different from an entry in the which a corresponding CQI index is largest among all the entries found in the second CQI table and in which a modulation scheme is 64QAM.

As an example, the entries found in the first CQI table and in which a modulation scheme is 64QAM may also include entries, in the second CQI table, that correspond, respectively, to the 10-M CQI indices, where M can be 11, 12, 13 or 14; the entries found in the first CQI table and in which a modulation scheme is 64QAM may also include entries, in the second CQI table, that correspond, respectively, to the CQI indices 10, 12 and 14; and the entries found in the first CQI table and in which a modulation scheme is 64QAM may further include entries, in the second CQI table, that correspond, respectively, to the CQI indices 10 and 13, or the entries that are found in the first CQI table and in which a modulation scheme is 64QAM may also include entries in the second CQI table, which correspond, respectively, to the CQI indices 10, 13 and 14.

Furthermore, in the above six types of first CQI tables, a spectral efficiency in an entry in which a corresponding CQI index is smaller among entries in which a modulation scheme is higher than 64QAM can be equal to a spectral efficiency in an entry in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM.

Furthermore, in the above six types of first CQI tables, the spectral efficiencies {S ⁱ , ..., S ⁱ , ..., ^St } (which are arranged in ascending order) in T entries in which the CQI indices corresponding values are smaller between inputs in which a modulation scheme is higher than 64QAM may be equal to or approximately equal to spectral efficiencies {P ⁱ , ..., P ⁱ , ..., P ^t } (which are arranged in ascending order) in T entries in which the corresponding CQI indices are largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM. T is equal to any natural number from 1-5, and 1 ≤i≤T. Being approximately equal means that {S ⁱ ,..., S ⁱ ,..., ^St } are not completely equal to {P ¹ ,..., P ⁱ ,..., P ^t }, and a difference between S ⁱ and P ⁱ is less than a pre-established value a.

As an example, the spectral efficiencies at T entries in which the corresponding CQI indices are smaller among entries found in the first CQI table and in which a modulation scheme is higher than 64QAM include one or more (more of two) of the following numerical values: {3.3223, 3.9023, 4.5234, 5.1152, 5.5547} or include one or more of the following numerical values: {3.3203, 3.8984, 4.5234, 5.1172, 5.5547}. The above spectral efficiencies are, respectively, equal to or approximately equal to spectral efficiencies at five entries in which the corresponding CQI indices are largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM .

In an example of T=2, T entries whose corresponding CQI indices are smaller among entries found in the first CQI table and in which a modulation scheme is higher than 64QAM are shown in Table 3.

Table 3

As an example, assume that: in the first CQI table, there are three entries in which a modulation scheme is QPSK, and the corresponding CQI indices are 1-3; There are three inputs in which one modulation scheme is 16QAM, and the corresponding CQI indices are 4-6; There are five inputs in which a modulation scheme is 64QAM, and the corresponding CQI indices are 7-11; and since a CQI index value range in the first CQI table is 0-15, in the first CQI table, there are four entries in which a modulation scheme is higher than 64QAM, and the corresponding CQI indices are 12- 15, where a smallest CQI index among the entries is 12. Specifically, as shown in Table 1, the entry found in the first CQI table that corresponds to CQI index 12 is the entry found in the second CQI table and which corresponds to the CQI index 15.

It can be known according to Table 4 that an entry in the first CQI table and an entry in the second CQI table that correspond to the same CQI index can be the same, for example, when a CQI index is 1; An entry in the first CQI table and an entry in the second CQI table that correspond to the same CQI index can be different, for example, when the CQI indexes are 5, 9 and 10.

Table 4

It can be seen that each of the above six types of first CQI tables includes an entry in which a modulation scheme is higher than 64QAM, so that the EU is supported to select a modulation scheme higher than 64QAM, and for notify a base station by using a method to send a CQI index and thereby improve system performance. Furthermore, the sixth type of first CQI table includes an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is 16QAM, an entry in which a modulation scheme is 64QAM, and an entry in the which modulation scheme is higher than 64QAM, and is a preferable first CQI table.

Additionally, optionally, in any of the above first CQI tables, a spectral efficiency at an input in which a corresponding CQI index is larger among inputs in which a modulation scheme is higher than 64QAM may be:

4/3 times a spectral efficiency at an entry in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM; or

8 times the maximum code rate of a terminal EU, where the maximum code rate is a positive real number less than 1; either

7.4063; either

7,432.

It should be noted that a maximum code rate of a terminal refers to a maximum code rate at which a transmission block can be received by the terminal. If a code rate of a transmission block is greater than the maximum code rate of the terminal, the terminal may not receive the transmission block. A maximum code rate of a terminal is not a code rate in a CQI table. In general, a maximum code rate of a terminal can be 0.93 or 0.929.

Optionally, in any of the above first CQI tables, the spectral efficiencies in when it is mentioned that the spectral efficiencies in X inputs arranged in the upward order of the spectral efficiency, a difference between a spectral efficacy in each input and a spectral efficacy in a respective preceding entry is equal to the same constant; or when it is mentioned that spectral efficiencies in the ; and X is an integer greater than 2.

Specifically, ^{it is} assumed that: ^the spectral efficiencies in ; ^Starting with the second entry in the t ^1¡ t ² t ^{X - i} ), andt ⁱ =m ^¡+1 -m ⁱ .

If all the numerical values in (ti, t ² ,..., t ^{X - 1} ) are equal (which are a constant), the spectral efficiencies in CQI indices are larger are an arithmetic progression of spectral efficiencies arranged in ascending order, where the constant is referred to as a common difference in the arithmetic progression.

If an absolute value of difference between each numerical value in (t ¹ , t ² ,..., t ^{X - 1} ) and a constant lies within a preset value range, the spectral efficiencies at the first CQI table and in which the CQI indices are largest are an approximately arithmetic progression of efficacies spectral arrays arranged in ascending order. It can also be understood as: if an absolute value of a difference between any two adjacent numerical values in (t ⁱ , t ² , ..., t ^{X - 1} ) is less than a preset value, all numerical values in (ti , t ² , ..., t ^{X - 1} ) are approximately equal and therefore the spectral efficiencies in arithmetic of spectral efficiencies arranged in ascending order, where the constant is referred to as a common difference in the approximately arithmetic progression.

As an example, in an example of

Table 5-1

As shown in Table 5-1, the spectral efficiencies corresponding to inputs in which the respective CQI indices are 13-15 are, respectively, 6.1719, 6.7891 and 7.4063; Starting with the second entry (namely, an entry in which a CQI index is 14), a difference between a spectral efficiency in each entry and a spectral efficiency in a respective preceding entry is equal to 0.6172, the spectral efficiencies in The three entries found in the first CQI table and in which the CQI indices are largest form an arithmetic progression in ascending order of the spectral efficiencies.

As an example, in an example of

Table 5-2

As shown in Table 5-2, the spectral efficiencies corresponding to inputs in which the respective CQI indices are 13-15 are 6.1797, 6.8047 and 7.4297, respectively; Starting with the second entry (namely, an entry in which a CQI index is 14), a difference between a spectral efficiency in each entry and a spectral efficiency in a respective preceding entry is equal to 0.625, the spectral efficiencies in the three entries found in the first CQI table and in which the CQI indices are largest form an arithmetic progression in ascending order of the spectral efficiencies; either

As shown in Table 5-2, the spectral efficiencies corresponding to inputs in which the respective CQI indices are 13-15 are 6.1805, 6.8062 and 7.432, respectively; If a preset value is 0.001, and starting from the second input (namely, an input in which a CQI index is 14), a difference between a spectral efficiency in each input and a spectral efficiency in a respective preceding input is found within Ranging from 0.625 minus 0.001 to 0.625 plus 0.001, the spectral efficiencies in the three entries found in the first CQI table and in which the CQI indices are largest form an approximately arithmetic progression in ascending order of the spectral efficiencies.

Additionally, optionally, a spectral efficiency at an entry in which a corresponding CQI index is smallest among in an entry in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM.

Optionally, a spectral efficiency on an entry in which a corresponding CQI index is largest among spectral at an entry in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM; or 8 times a maximum code rate of a terminal, where the maximum code rate is a positive real number less than 1; either

7.4063; either

7,432.

Additionally, optionally, in any of the above first CQI tables, the spectral efficiencies at inputs in which a modulation scheme is higher than 64QAM include at least one of the following groups of numerical values:

{5.5547 6.18056.8062 7.432},

{6.1805 6.80627.432},

{5.5547 6.17976.8047 7.4297},

{6.1797 6.80477.4297},

{5.5547 6.17196.7891 7.4063},

{6.1719 6.7891 7.4063},

{5.5547 6.49347.432},

{6.4934 7.432},

{5.5547 6.49227.4297},

{6.4922 7.4297 },

{5.5547 6.48057.4063},

{6.4805 7.4063 },

{5.5547 6.48447.4063},

{6.4844 7.4063 },

{5.5547 6.02406.4934 6.96277.432},

{6.0234 6.49226.9609 7.4297},

{5.5547 6.02346.4922 6.96097.4297},

{6.0176 6.48056.9434 7.4063},

{5.5547 6.01766.4805 6.94347.4063},

{6.0176 6.48056.9434 7.4063},

{5.5547 6.01566.4844 6.94537.4063},

{6.0156 6.48446.9453 7.4063},

{5.5547 5.93026.3056 6.6811 7.0565 7.432},

{5.9302 6.30566.6811 7.05657.432},

{5.5547 5.92976.3047 6.67977.0547 7.4297},

{5.9297 6.30476.6797 7.05477.4297},

{5.55475.92506.2953 6.66567.0360 7.4063},

{5.92506,29536,6656 7.03607,4063},

{5.55475.92196.2969 6.6641 7.0391 7.4063}, and

{5.92196.29696.6641 7.0391 7.4063}.

As an example, each of the input spectral efficiencies found in the first CQI table and for which a modulation scheme is higher than 64QAM includes one of the following groups of numerical values:

{5.55476,17976,8047 7.4297}; either

{6,17976,80477,4297}; either

{5.55476.17196.7891 7.4063}; either

{6.17196.7891 7.4063}.

Four types of first CQI tables are listed as follows:

Table 6-1

Table 6-2

Table 6-3

Table 6-4

Four other types of first CQI tables are listed as follows:

Table 6-5

Table 6-6

Table 6-7

Table 6-8

It should be noted that the above first CQI tables may not include the "CQI index in second CQI table" column, where the column is added to indicate a relationship between the first CQI table and the second CQI table.

Furthermore, it should be noted that the above first CQI tables are used to describe a mapping relationship between CQI indexes and entries, and a mapping relationship in the first CQI table in the present embodiment of the present invention is only used as an example for the sake of of the understanding of the present invention, and a representation format of the first CQI table in the present invention is not intended to be limited to the format described herein, that is, the first CQI table may have various combinations, as long as it can present a mapping relationship between first CQI indices and entries. All combinations will fall within the scope of protection of the present invention.

E102: The EU sends the first CQI index to a base station.

The present invention provides a method and apparatus for notifying a channel quality indicator and a modulation and coding scheme, which allows a UE to select a modulation scheme higher than 64QAM and notify a base station by using a method of sending a CQI index, and also allows the base station to select a modulation scheme higher than 64QAM and notify the UE by using a method of sending an MCS index, thereby improving system performance.

With reference to an accompanying drawing, an MCS notification method according to an embodiment of the present invention is described in detail below.

As shown in Figure 2, the stages of the MCS notification method are as follows:

E201: A base station receives a first CQI index.

The first CQI index is determined by an EU according to an acquired first CQI table.

E202: The base station determines a first MCS index according to a first CQI table, a first MCS table and the first CQI index received.

The first CQI table may be predefined in a protocol, preset by the EU in compliance with a protocol, or prestored by the EU; or is selected by the EU from at least two predefined tables according to a downlink channel state; or it can be notified by the base station to the EU. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to an uplink channel state or a downlink channel state, and notify the EU about the selected table. A CQI table is used to describe a mapping relationship between CQI indexes and entries. The mapping relationship in the CQI table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the CQI table in the present invention is not intended to be limited to the format described herein, that is, the CQI table can have various combinations, as long as it can present a mapping relationship between CQI indexes and entries. All combinations will fall within the scope of protection of the present invention.

The first MCS table may be predefined in a protocol, preset by the EU in compliance with a protocol, or prestored by the EU; or a from at least two predefined tables is selected by the EU according to a downlink channel state; or may be notified by the base station to the UE and, specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to a link channel state uplink or downlink channel state, and notify the UE about the selected table. The MCS table is used to describe a mapping relationship between MCS indexes and entries. A mapping relationship in the MCS table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the MCS table in the present invention is not intended to be limited to the format described herein, that is, the MCS table can have various combinations, as long as it can present a mapping relationship between MCS indexes and entries. All combinations will fall within the scope of protection of the present invention.

The first CQI table may include:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second CQI table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first combination is N entries found in the second CQI table and in which the CQI indices corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second CQI table merely include QPSK, 16QAM and 64QAM.

That is, the first CQI table includes an entry in which a modulation scheme is higher than 64QAM; and the first CQI table further includes at least one entry that is found in the second CQI table and in which a modulation scheme is QPSK, where the entries that are found in the first CQI table and in which a modulation scheme is QPSK cannot merely be N entries found in the second CQI table and in which a modulation scheme is QPSK and the corresponding CQI indices are continuous and largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or the first CQI table further includes at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where the modulation schemes in the entries in the second CQI table merely include QPSK, 16QAM and 64QAM; an entry in the first CQI table refers to a modulation scheme, a code rate and a spectral efficiency that correspond to a CQI index in the first CQI table; An entry in the second CQI table refers to a modulation scheme, a code rate and a spectral efficiency that correspond to a CQI index in the second CQI table.

It should be noted that, for details about the first CQI table in the present embodiment, it is necessary to refer to the descriptions of the first CQI table in the embodiment corresponding to Figure 1 and further elaboration is not provided in the present embodiment.

The first MCS table may include:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in the second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a second combination, formed by the at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the second combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second MCS table merely include QPSK, 16QAM and 64QAM.

That is, the first MCS table also includes at least one entry that is found in the second MCS table and in which a modulation scheme is QPSK, where entries that are found in the second MCS table and in which a modulation scheme is QPSK cannot simply be K inputs that are in the second MCS table and in which the corresponding MCS indices are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or the first MCS table further includes at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where the modulation schemes in the entries in the second CQI table merely include QPSK, 16QAM and 64QAM. An entry in the first MCS table refers to a modulation scheme and a TBS index that correspond to an MCS index in the first MCS table; An entry in the second MCS table refers to a modulation scheme and a TBS index that correspond to an MCS index in the second MCS table.

The combination is a combination formed by at least one entry found in the second MCS table and in which a modulation scheme is QPSK. In an example of the second MCS table shown in Table 6, there are 210-1 =1023 combinations formed by the at least one entry found in the second MCS table and in which one modulation scheme is QPSK. For example, the join may be a join formed by an entry, in the second MCS table, corresponding to the CQI index 6, or it may be a join formed by entries, in the second MCS table, corresponding, respectively, to the indices MCS 6, 7, 8 and 9 can be a combination formed by entries, in the second CQI table, that correspond, respectively, to the CQI indices 3, 6, 7, 8 and 9, or similar.

Specifically, there can be three types of first MCS tables:

a first type of first MCS table: it simply includes an entry in which a modulation scheme is QPSK and an entry in which a modulation scheme is higher than 64QAM;

a second type of first MCS table: it simply includes an entry in which a modulation scheme is 16QAM and an entry in which a modulation scheme is higher than 64QAM; and

a third type of first MCS table: it simply includes an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is 16QAM, and an entry in which a modulation scheme is higher than 64QAM.

There may be various types of MCS first tables in the present invention, the above three types of MCS first tables are only examples for the sake of understanding of the present invention, and are not intended to limit the present invention.

Specifically, the first MCS index is determined according to the first CQI index received, the first CQI table, the first MCS table and the first CQI index received, or the determination of the first MCS index according to the first CQI table acquired, the first table MCS acquired and the first CQI index received includes:

determining a first TBS index and the first MCS index according to the first CQI table, the first MCS table and the first CQI index received, which specifically includes:

determining the first TBS index and the first MCS index according to a first PRB quantity, the first CQI table and the first MCS table that are acquired, and the first CQI index received; and further includes: determining the first TBS index and the first MCS index according to the first PRB quantity, the first CQI table, the first MCS table and a first TBS table that are acquired, and the first CQI index received.

The first PRB quantity is a PRB quantity assigned to the UE by the base station; or the first PRB quantity is a larger integer less than or equal to a product of the PRB quantity assigned to the UE and a specific coefficient, where the specific coefficient is a pre-stored numerical value or a numerical value reported by the base station to the UE.

Specifically, if the first modulation scheme is 256QAM and the PRB quantity assigned to the UE is less than or equal to a specific threshold Q, the first PRB quantity is a larger integer no greater than a product of the PRB quantity assigned to the EU and a specific coefficient P, where a product of P and Q is not greater than a maximum PRB quantity and, in an LTE system, a maximum PRB quantity is 110. Preferably, when Q=82, P=1.33, where P*Q=109.06 < 110, if the PRB quantity assigned to the UE by the base station is 50, the first PRB quantity is a larger integer less than or equal to 50*1.33=66.5, i.e. , the first PRB quantity is 66.

The first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table.

Additionally, optionally, a value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26.

Or, optionally, a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26, and the sizes of the transmission blocks corresponding to the TBS indexes 026 in the first TBS table are equal to the sizes of transmission blocks corresponding to TBS indices 0-26 in a second TBS table; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

Or, optionally, a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26, and the sizes of the transmission blocks corresponding to the TBS indexes 0-C in the first TBS table are equal to the sizes of the transmission blocks corresponding to the TBS indices 0-C in a second TBS table, where C is a non-negative integer less than or equal to 26; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

Furthermore, specifically, the determination of the first TBS index according to the first CQI table, the first PRB quantity, the first TBS table and the first received CQI index includes that:

First, a first modulation scheme and a first spectral efficiency corresponding to the first received CQI index are determined according to the first received CQI index and the first CQI table.

Then, a first transmission block size transmitted to the UE is learned based on the first PRB quantity and the first spectral efficiency.

After that, the first TBS index corresponding to the first transmission block size and the first PRB quantity and in the first TBS table is obtained according to the first TBS table.

It should be noted that the first CQI table, the first MCS table and the first TBS table may be pre-stored by the base station.

For the sake of understanding, a TBS table (namely a second TBS table) in an existing protocol is presented below:

Table 7

As an example, when B=32, in the first TBS table, a value range of the first TBS index is 0-32 (as shown in Table 8). xxx shown in the table represents a transmission block size and a specific value can be set based on a simulation result.

Table 8

The first TBS table is also described below.

Optionally, the first TBS table includes a TBS index Y1, where for each PRB quantity, a transmission block size corresponding to the TBS index Y1 is greater than a transmission block size corresponding to a TBS index 25 in the second table TBS and smaller than a transmission block size corresponding to a TBS index 26 in the second TBS table; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

The TBS index Y1 can be greater than 26. For example, Y1 can be 27 or 28.

For example, for each PRB quantity, a transmission block size corresponding to a TBS index 27 in the first TBS table is larger than a transmission block size corresponding to a TBS index 25 in the second TBS table and smaller than a transmission block size corresponding to a TBS index 26 in the second TBS table. More specifically, if a PRB quantity is 1, a transmission block size corresponding to TBS index 27 in the first TBS table is greater than 616 and less than 712. As another example, if a PRB quantity is 2, a transmission block size corresponding to TBS index 27 in the first TBS table is greater than 1256 and less than 1480.

Optionally, the first TBS table includes a TBS index Y2 and at least one entry corresponding to the TBS index Y2 in the following Table A, where any entry includes a PRB quantity and a transmission block size corresponding to the PRB quantity:

the TBS index Y2 in the first TBS table can be greater than 26, for example, Y2=27.

Table A

I,

the first TBS table includes a TBS index Y3 and at least one entry corresponding to the TBS index Y3 in the following Table B1, B2, B3 or B4, where any entry includes a quantity PRB and a transmission block size corresponding to the quantity PRB:

the TBS index Y3 in the first TBS table can be greater than 26, for example, Y3=33.

Table B1

Table B2

Table B3

Table B4

I,

the first TBS table includes TBS indices Y4_1 to Y4_5 and at least one entry corresponding to TBS indices Y4_1 to Y4_5 in the following Table C1 or C ₂ , where any one entry includes a PRB quantity and five transmission block sizes corresponding to the PRB quantity, where

Y4_1 to Y4_5 in the first TBS table can be greater than 26, for example, Y4_1=28, Y4_2=29, Y4_3=30, Y4_4=31 and Y4_5=32.

Table C1

Table C ₂

Finally, the first MCS index corresponding to the first TBS index is learned according to the first MCS table, the first modulation scheme and the first TBS index.

The first CQI table in the present embodiment is the same as the first CQI table in the previous embodiment, and the details are not described again herein. The first MCS table in the present embodiment is described in detail below.

For the sake of understanding, the following MCS table (namely the second MCS table) is used as an example for description:

Table 9

In Table 9, a modulation order corresponds to a modulation scheme. For example, if a modulation scheme is QPSK, a modulation order is 2; if a modulation scheme is 16QAM, a modulation order is 4; if a modulation scheme is 64QAM, a modulation order is 6; and if a modulation scheme is 256QAM, a modulation order is 8.

In Table 9, entries in which the MCS indices are 29, 30 and 31 are reserved entries.

It should be noted that, to minimize changes to the prior art during a specific implementation process, preferably, a value range of an MCS index in the first MCS table and a value range of an MCS index in the second MCS table can be be equal to, for example, 0 to 31. Apparently, a value range of an MCS index in the first MCS table may also be greater than a value range of an MCS index in the second MCS table, for example, a value range of an MCS index in the first MCS table is 0 to 40.

First type of first MCS table: The first type of first MCS table simply includes an entry in which a modulation scheme is QPSK and an entry in which a modulation scheme is higher than 64QAM.

The first MCS table may include one entry or multiple entries in which a modulation scheme is higher than 64QAM, where each entry in which a modulation scheme is higher than 64QAM includes a modulation order and a first TBS index, and has a corresponding MCS index.

Table 10

The first MCS table further includes at least one entry found in the second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a second combination, formed by at least one entry found in the second MCS table and in which a modulation scheme is QPSK. That is, the first MCS table also includes at least one entry that is in the second MCS table and in which a modulation scheme is QPSK, and the entries in which a modulation scheme is QPSK are not K entries that are found in the second MCS table and in which the corresponding MCS indices are continuous and the largest, where K is 6. Specifically, it starts from nine entries, in the second MCS table (namely, Table 4), which correspond to indices 0-9 and in which a modulation scheme is QPSK, are included in the first MCS table, where the entries that are in the first MCS table and in which a modulation scheme is QPSK are not the six entries found in the second MCS table and in which a modulation scheme is QPSK and the MCS indices are continuous and the largest.

That is, the entries found in the first MCS table and in which a modulation scheme is QPSK cannot merely be entries in the second MCS table, which correspond, respectively, to the MCS indices 4, 5, 6, 7, 8 and 9.

Alternatively, the first MCS table further includes at least one entry that is in the second MCS table and in which a modulation scheme is QPSK, and the entries in which a modulation scheme is QPSK are not K entries that are found in the second MCS table and in which the corresponding MCS indices are continuous and the largest, where K is a positive integer. Specifically, part of nine entries, in the second MCS table, which correspond, respectively, to indices 0-9 and in which a modulation scheme is QPSK are included in the first MCS table, where the entries that are found in the first MCS table and in which a modulation scheme is QPSK are not K entries that are found in the second MCS table and in which a modulation scheme is QPSK and the MCS indices are continuous and the largest and, of Specifically, a value range of K can be 1 to 8. That is:

an entry found in the first MCS table and in which a modulation scheme is QPSK cannot merely be an entry in the second MCS table, which corresponds to MCS index 9; either

entries found in the first MCS table and in which a modulation scheme is QPSK cannot merely be entries in the second MCS table, corresponding, respectively, to MCS indices 8 and 9; either entries found in the first MCS table and in which a modulation scheme is QPSK cannot merely be entries in the second MCS table, corresponding, respectively, to MCS indices 7, 8 and 9; either

entries found in the first MCS table and in which a modulation scheme is QPSK cannot merely be entries in the second MCS table, corresponding, respectively, to MCS indices 6, 7, 8 and 9; either

entries found in the first MCS table and in which a modulation scheme is QPSK cannot merely be entries in the second MCS table, corresponding, respectively, to MCS indices 5, 6, 7, 8 and 9; either

Entries that are found in the first MCS table and in which a modulation scheme is QPSK cannot merely be entries, in the second MCS table, that correspond, respectively, to the MCS indices 4, 5, 6, 7, 8 and 9; either

Entries that are found in the first MCS table and in which a modulation scheme is QPSK cannot merely be entries, in the second MCS table, that correspond, respectively, to the MCS indices 3, 4, 5, 6, 7, 8 and 9; either

Entries that are found in the first MCS table and in which a modulation scheme is QPSK cannot merely be entries, in the second MCS table, that correspond, respectively, to the MCS indices 2, 3, 4, 5, 6, 7, 8 and 9.

Alternatively, the first MCS table includes part of the entries that are in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is the same.

As an example, if entries found in the first MCS table and in which a modulation scheme is QPSK include three of the entries found in the second MCS table and in which a modulation scheme is QPSK, the Entries that are found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the second MCS table, that correspond, respectively, to MCS indices 0, 3 and 6, or the entries that are found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the second MCS table, which correspond, respectively, to the CQI indices 2, 5 and 8; or the entries found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the second MCS table, corresponding, respectively, to CQI indices 3, 6 and 9; or the entries found in the first MCS table and in which a modulation scheme is QPSK may include entries in the second MCS table, which correspond, respectively, to the CQI indices 0, 4 and 8; or the entries found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the second MCS table, corresponding, respectively, to CQI indices 1, 5 and 9;

If the entries found in the first MCS table and in which a modulation scheme is QPSK include four of the entries found in the second MCS table and in which a modulation scheme is QPSK, the entries found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the second MCS table, which correspond, respectively, to the MCS indices 0, 3, 6 and 9;

If the entries found in the first MCS table and in which a modulation scheme is QPSK include five of the entries found in the second MCS table in which a modulation scheme is QPSK, the entries found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the second MCS table, that correspond, respectively, to the MCS indices 1, 3, 5, 7 and 9; or entries found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the second MCS table, corresponding, respectively, to MCS indices 0, 2, 4, 6 and 8.

Alternatively, the first MCS table includes part of the entries that are in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is not the same.

As an example, the entries found in the first MCS table and in which a modulation scheme is QPSK include M entries found in the second MCS table and in which a modulation scheme is QPSK, where a value of M can be 3, 4, 5, 6, 7, 8 or 9. If M=5, the entries found in the first MCS table and in which a modulation scheme is QPSK include five of the entries that are found in the MCS table and in which a modulation scheme is QPSK, and the entries that are found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the MCS table, that correspond, respectively, to the second MCS indices 1,4, 7, 8 and 9.

Alternatively, the first MCS table includes part of the entries that are in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one entry different from an entry in which an MCS index is largest among all entries found in the second MCS table and in which a modulation scheme is QPSK. That is, the first MCS table includes part of the entries that are found in the second MCS table and in which a modulation scheme is QPSK but does not include an entry in which an MCS index is largest among all the entries that are found. in the second MCS table and in which a modulation scheme is QPSK.

As an example, the entries found in the first MCS table and in which a modulation scheme is QPSK include M of the entries found in the second MCS table and in which a modulation scheme is QPSK, where a value of M can be 1.2, 3, 4, 5, 6, 7, 8 or 9. If M=8, the entries found in the first MCS table and in which a modulation scheme is QPSK include eight of the entries found in the MCS table and in which a modulation scheme is QPSK, and the entries found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the second MCS table, which correspond, respectively, to the MCS indices 0, 1, 2, 3, 4, 5, 6, 7 and 8.

Still alternatively, the first MCS table includes part of the inputs that are found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one entry different from an entry in which an MCS index is largest among all entries found in the second MCS table and in which a modulation scheme is QPSK. That is, the first MCS table includes part of the entries that are in the second MCS table and in which a modulation scheme is QPSK, but does not include an entry in which an MCS index is largest among all the entries that are found in the second MCS table and in which a modulation scheme is QPSK.

As an example, the entries found in the first MCS table and in which a modulation scheme is QPSK include M entries found in the second MCS table and in which a modulation scheme is QPSK, where a value of M can be 1, 2, 3, 4, 5, 6, 7, 8 or 9. If M=8, the entries found in the first MCS table and in which a modulation scheme is QPSK include eight of the entries found in the second MCS table and in which a modulation scheme is QPSK, and the entries found in the first MCS table and in which a modulation scheme is QPSK may include entries, in the second MCS table, which correspond, respectively, to the MCS indices 0, 1, 2, 3, 4, 5, 6 and 7.

Second type of first MCS table: The second type of first MCS table simply includes an entry in which a modulation scheme is 16QAM and an entry in which a modulation scheme is higher than 64QAM.

The first MCS table may include one entry or multiple entries in which a modulation scheme is higher than 64QAM, where each entry in which a modulation scheme is higher than 64QAM includes a modulation order and a first TBS index, and has a corresponding MCS index.

The first MCS table further includes at least one entry that is found in the second MCS table and in which a modulation scheme is 16QA ^m .

Specifically, the first MCS table further includes all entries found in the second MCS table and in which a modulation scheme is 16QAM.

By way of example, the first MCS table further includes six entries found in the second MCS table and in which a corresponding modulation scheme is 16QAM and the corresponding MCS indices are 10 16.

Alternatively, the first MCS table further includes entries that are found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the input part is the same.

For example, if entries found in the first MCS table and in which a modulation scheme is 16QAM include three of the entries found in the second MCS table and in which a modulation scheme is 16QAM, the entries that are found in the first MCS table and in which a modulation scheme is 16QAM may include entries in the second MCS table, which correspond, respectively, to the MCS indices 10, 13 and 16; or the entries found in the first MCS table and in which a modulation scheme is 16QAM may include entries, in the second MCS table, that correspond, respectively, to the MCS indices 10, 12 and 14; or entries found in the first MCS table and in which a modulation scheme is 16QAM may include entries, in the second MCS table, corresponding, respectively, to MCS indices 11, 13 and 15; or entries found in the first MCS table and in which a modulation scheme is 16QAM may include entries, in the second MCS table, corresponding, respectively, to MCS indices 12, 14 and 16;

If the entries found in the first MCS table and in which a modulation scheme is 16QAM include four of the entries found in the second MCS table and in which a modulation scheme is 16QAM, the entries found in the first MCS table and in which a modulation scheme is 16QAM may include entries in the second MCS table, which correspond, respectively, to the MCS indices 10, 12, 14 and 16.

Alternatively, the first MCS table further includes entries that are found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the input part is not the same.

As an example, the entries found in the first MCS table and in which a modulation scheme is QPSK include M entries found in the second MCS table and in which a modulation scheme is 16QAM, where a value of M can be 3, 4, 5 or 6. If M=5, the entries that are in the first MCS table and in which a modulation scheme is 16QAM can include entries, in the second MCS table, that correspond , respectively, at the MCS indices 10, 12, 14, 15 and 16.

Alternatively, the first MCS table further includes part of the entries that are found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one entry different from an entry in which a second MCS index is largest among all entries found in the second MCS table and in which a modulation scheme is 16QAM. That is, the first MCS table also includes part of the entries that are found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is not include an entry in which an MCS index is largest among all entries found in the second MCS table and in which a modulation scheme is 16QAM.

As an example, the entries found in the first MCS table and in which a modulation scheme is 16QAM include M entries in which a modulation scheme is 16QAM, where a value of M can be 1, 2, 3, 4, 5 or 6. If M=5, the entries that are in the first MCS table and in which a modulation scheme is 16QAM may include entries, in the second MCS table, that correspond, respectively, to the MCS indices 10, 11, 12, 13 and 15.

Alternatively, the first MCS table further includes part of the inputs that are found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the input part are continuous, and the input part is at least one entry different from an entry in which an MCS index is largest among all entries found in the second MCS table and in which a modulation scheme is 16QAM. That is, the first MCS table also includes part of the entries that are in the second MCS table and in which a modulation scheme is 16QAM, and the part of entries does not include an entry in which an MCS index is larger than all entries found in the second MCS table and in which a modulation scheme is 16QAM.

As an example, the entries found in the first MCS table and in which a modulation scheme is 16QAM include M of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a value of M can be 1, 2, 3, 4, 5 or 6. If M=6, the entries found in the first MCS table and in which a modulation scheme is 16QAM can include entries, in the second MCS table, which correspond, respectively, to MCS indices 10, 11, 12, 13, 14 and 15.

Still alternatively, the first MCS table further includes part of the entries that are found in the second MCS table and in which a modulation scheme is 16QAM, where the part of the entries is at least one entry different from the entries in which a respective MCS index is largest or smallest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM. That is, the first MCS table further includes part of entries that are found in the second MCS table and in which a modulation scheme is 16QAM, where the part of entries does not include entries in which a respective MCS index is larger or smallest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM.

As an example, the entries found in the first MCS table and in which a modulation scheme is 16QAM include M of the entries found in the second MCS table and in which a modulation scheme is 16QAM, where a value of M can be 1, 2, 3, 4 or 5. If M=5, the entries that are found in the first MCS table and in which a modulation scheme is 16QAM may include entries in the second MCS table, which correspond, respectively, to the MCS indices 11, 1213, 14 and 15;

alternatively, if M=4, entries found in the first MCS table and in which a modulation scheme is 16QAM may include entries, in the second MCS table, corresponding, respectively, to MCS indices 11, 12, 13 and 14; or entries found in the first MCS table and in which a modulation scheme is 16QAM may include entries, in the second MCS table, corresponding, respectively, to MCS indices 11, 13, 14 and 15.

Third MCS first table type: An entry in which a modulation scheme is 16QAM is added to the first MCS first table type to obtain the third CQI first table type. The third type of first MCS table simply includes an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is 16QAM, and an entry in which a modulation scheme is higher than 64QAM. Specifically, an entry that is included in the third type of first MCS table and in which a modulation scheme is 16QAM may be equal to an entry that is included in the second type of first MCS table and in which a modulation scheme is 16QAM modulation is 16QAM. For details, refer to the descriptions of the entry found in the second type of the first MCS table and in which a modulation scheme is 16QAM.

Likewise, the first MCS table further includes at least one entry that is found in the second MCS table and in which a modulation scheme is 64QAM.

That is, an entry in which a modulation scheme is 64QAM is added to the first type of first MCS table to obtain a fourth type of first MCS table; In the present case, the fourth type of first MCS table includes an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is higher than 64QAM, and an entry in which a modulation scheme is 16QAM;

alternatively, an entry in which a modulation scheme is 64QAM is added to the second type of first MCS table to obtain a fifth type of first MCS table; In the present case, the fifth type of first MCS table includes an entry in which a modulation scheme is 16QAM, an entry in which a modulation scheme is higher than 64QAM, and an entry in which a modulation scheme is 64QAM;

still alternatively, an entry in which a modulation scheme is 64QAM is added to the third type of first MCS table to obtain a sixth type of first MCS table; In the present case, the sixth type of first MCS table includes an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is 16QAM, an entry in which a modulation scheme is higher than 64QAM and an input in which a modulation scheme is 64QAM.

In the fourth, fifth or sixth type of first MCS table, an entry in which a modulation scheme is 64QAM is as follows:

Specifically, the first MCS table further includes all entries that are found in the second MCS table and in which a modulation scheme is 64QAM.

By way of example, the first MCS table further includes twelve entries found in the second MCS table and in which a corresponding modulation scheme is 64QAM and the corresponding MCS indices are 17 28.

Alternatively, the first MCS table further includes part of the entries that are in the second MCS table and in which a modulation scheme is 64QAM, where the part of entries is at least one entry different from an entry in which an MCS index is the smallest among all entries found in the second MCS table and in which a modulation scheme is 64QAM; that is, part of the entries that are in the second MCS table and in which a modulation scheme is 64QAM are included in the first MCS table, where the part of the entries does not include an entry in which an MCS index is smallest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM.

Alternatively, the first MCS table further includes part of the entries that are in the second MCS table and in which a modulation scheme is 64QAM, where the part of the entries is at least one entry different from an entry in the which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM; that is, part of entries that are in the second MCS table and in which a modulation scheme is 64QAM are included in the first MCS table, where the part of the entries does not include an entry in which an MCS index is more large among all entries found in the second MCS table and in which a modulation scheme is 64QAM.

As an example, the first MCS table further includes M entries found in the second MCS table and in which a modulation scheme is 64QAM, where a value range of M is 1-11 and M is an integer. If M=5, the entries found in the first MCS table and in which a modulation scheme is 64QAM they may include entries, in the second MCS table, that correspond, respectively, to MCS indices 18, 19, 20, 21 and 23; or the entries found in the first MCS table and in which a modulation scheme is 64QAM may include entries, in the second MCS table, corresponding, respectively, to the MCS indices 18, 20, 21,24 and 25; either

alternatively, if M=7, entries found in the first MCS table and in which a modulation scheme is 64QAM may include entries, in the second MCS table, corresponding, respectively, to MCS indices 18, 19, 20, 21,23, 25 and 26; or the entries found in the first MCS table and in which a modulation scheme is 64QAM may include entries, in the second MCS table, corresponding, respectively, to the MCS indices 19, 20, 21,24, 25, 27 and 28; either

alternatively, if M=1, entries found in the first MCS table and in which a modulation scheme is 64QAM may include entries, in the second MCS table, corresponding, respectively, to MCS indices 17, 18, 19, 20, 21,22, 23, 24, 25, 26 and 27.

Furthermore, in the above six types of first MCS tables, a TBS index on an entry in which a corresponding MCS index is smallest among all entries found in the first MCS table and in which a modulation scheme is smallest higher than 64QAM is equal to a TBS index at an entry in which an MCS index is largest among all entries found in the second MCS table and in which a modulation scheme is 64QAM.

Furthermore, in the above six types of first MCS tables, the TBS indices in R entries in which the corresponding MCS indices are smallest among all the entries found in the first MCS table and in which a modulation scheme is most higher than 64QAM can be equal to the TBS indices in R entries in which the MCS indices are largest among all entries found in the second MCS table and in which a modulation scheme is 64QAM and a respective MCS index is not is greater than 27, where R is a natural number.

As an example, the TBS indices in R entries in which the corresponding MCS indices are smaller among entries found in the first MCS table and in which a modulation scheme is higher than 64QAM include one or more (more of two) of the following numerical values: {15, 16, 17, 18, 19, 20, 21,22, 23, 24, 25}.

In an example of R=2, R entries in which the corresponding MCS indices are smaller among entries found in the first MCS table and in which a modulation scheme is higher than 64QAM are shown in the following Table 11 -1.

Table 11-1

As an example, assume that: in the first MCS table, there are five entries in which a modulation scheme is QPSK, and the corresponding MCS indices are 0-4; there are five inputs in which a modulation scheme is 16QAM, and the corresponding MCS indices are 5-9; There are eleven inputs in which one modulation scheme is 64QAM, and the corresponding MCS indices are 10-20; and a value range of an MCS index in the first MCS table is 0-31, where in the first MCS table, there are seven entries (three reserved entries are included and the MCS indices corresponding to the reserved entries are 28, 29, 30 and 31, respectively) in which a modulation scheme is higher than 64QAM, and the corresponding MCS indices are 21-28, and a smaller index among the inputs is 21. Specifically, as shown in the following Table 11, a TBS index on the entry found in the first MCS table and in which an MCS index is 21 is 26, and is equal to a TBS index on the entry found in the second MCS table and corresponding to the MCS index 28.

Table 11-2

It should be noted that the first MCS table may not actually include the column "MCS Index in the second MCS table", and such column is shown in Table 11_1 or Table 11_2, merely to clearly describe a relationship between the first MCS table and the second MCS table.

Alternatively, the first MCS table further includes at least one entry in the following Table D1, D2, D3, D4 or D5, and any entry includes an MCS index, and a modulation order and a TBS index corresponding to the MCS index. :

Table D1

Table D2

Table D3

Table D4

Table D5

Specifically, in the present embodiment, for example, Y2=27, Y3=33, Y4_1=28, Y4_2=29, Y4_3=30, Y4_4=31 and Y4_5=32.

It can be seen that each of the above six types of first MCS tables includes an entry in which a modulation scheme is higher than 64QAM, so that a base station can select a modulation scheme higher than 64QAM, and notify an EU by using a method to send an MCS index and thereby improve system performance. Furthermore, the sixth type of first MCS table is a preferable first MCS table, and includes an entry in which a modulation scheme is QPSK, an entry in which a modulation scheme is 16QAM, and an entry in which a modulation scheme is modulation scheme is 64QAM and an input in which a modulation scheme is higher than 64QAM.

E203: The base station sends the first determined MCS index to the EU.

As shown in Figure 3, the present invention further provides another MCS notification method.

A first CQI table in the present embodiment may be the same as any type of first CQI table in the previous embodiments; or it may be different from any type of first CQI table in the above embodiments, but the two CQI tables have one thing in common: they both include an entry in which a modulation scheme is higher than 64QAM. A first MCS table in the present embodiment may be any type of MCS table in the previous embodiments.

The first CQI table may be predefined in a protocol, preset by an EU in compliance with a protocol, or prestored by an EU; or is selected by an EU from at least two predefined tables according to a downlink channel state; or it may be reported by a base station to a UE. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to an uplink channel state or a downlink channel state, and notify the EU about the selected table. A CQI table is used to describe a mapping relationship between CQI indexes and entries. The mapping relationship in the CQI table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the CQI table in the present invention is not intended to be limited to the format described herein, that is, the CQI table can have various combinations, as long as it can present a mapping relationship between CQI indexes and entries. All combinations will fall within the scope of protection of the present invention.

The first MCS table may be predefined in a protocol, preset by an EU in compliance with a protocol, or prestored by the EU; or a from at least two predefined tables is selected by the EU according to a downlink channel state; or may be notified by a base station to the UE and, specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to a link channel state uplink or a downlink channel state, and notify the UE about the selected table. The MCS table is used to describe a mapping relationship between MCS indexes and entries. The mapping relationship in the MCS table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the MCS table in the present invention is not intended to be limited to the format described herein, specifically, the MCS table can have various combinations, as long as it can present a mapping relationship between MCS indexes and entries. All combinations will fall within the scope of protection of the present invention.

The method includes the following stages:

E301: A base station receives a first CQI index.

The first CQI index is determined by an EU according to an acquired first CQI table. The first MCS index is determined by the base station according to an acquired first MCS table.

E302: The base station determines a first MCS index according to a first CQI table, a first MCS table and the first CQI index received.

The first CQI table includes: an entry in which a modulation scheme is higher than 64QAM, where an entry in the first CQI table refers to a modulation scheme, a code rate and a spectral efficiency corresponding to an index CQI in the first CQI table.

The first MCS table includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination (the term first in the first combination is only used to distinguish one combination from another, and does not necessarily require or imply that a relationship or sequence exists between such combinations; the first combination is, in essence, the same as the second combination in the corresponding embodiment to Figure 2), formed by at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the first combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second MCS table merely include QPSK, 16QAM and 64QAM.

That is, the first MCS table also includes an entry in which a modulation scheme is higher than 64QAM; and the first MCS table further includes at least one entry that is found in the second MCS table and in which a modulation scheme is QPSK, where entries that are found in the first MCS table and in which a modulation scheme is QPSK cannot simply be K entries found in the second MCS table and in which the corresponding MCS indices are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or the first MCS table further includes at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where the modulation schemes in the entries in the second MCS table merely include QPSK, 16QAM and 64QAM. An entry in the first MCS table refers to a modulation scheme and a TBS index that correspond to an MCS index in the first MCS table, and an entry in the second MCS table refers to a modulation scheme and a TBS index that correspond to an MCS index in the second MCS table.

The combination is a combination formed by at least one entry found in the second MCS table and in which a modulation scheme is QPSK. In an example of the second MCS table shown in Table 6, there are 210-1 =1023 combinations formed by the at least one entry found in the second MCS table and in which one modulation scheme is QPSK. For example, the combination may be a combination formed by an entry, in the second MCS table, corresponding to the CQI index 6, it may be a combination formed by entries, in the second MCS table, corresponding, respectively, to the MCS indices 6, 7, 8 and 9, can be a combination formed by entries to which the CQI indices 3, 6, 7, 8 and 9 correspond, and which are found in the second CQI table, or similar.

It should be noted that a method for determining a first MCS index according to an acquired first CQI index, a first CQI table and a first MCS table is the same as the method in the above embodiment, and the details are not described again herein. For a method for determining a first TBS index and descriptions about a first TBS table and a second TBS table, it is necessary to refer to the previous embodiment, and the details are not described again herein.

Furthermore, the first MCS table in the present embodiment may be any of the 6 types of first MCS tables in the above embodiment, and the details are not described again herein.

E303: The base station sends the first determined MCS index to the EU.

As shown in Figure 4, the present invention further provides another MCS notification method. A first MCS table in the present embodiment may be any type of first MCS table in the previous embodiments.

In the present embodiment, the first MCS table may be predefined in a protocol, preset by an EU in compliance with a protocol, or prestored by an EU; or is selected by an EU from at least two predefined tables according to a downlink channel state; or it may be reported by a base station to a UE. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to an uplink channel state or a downlink channel state, and notify the EU about the selected table. An MCS table is used to describe a mapping relationship between MCS indexes and entries. The mapping relationship in the MCS table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the MCS table in the present invention is not intended to be limited to the format described herein memory, that is, the MCS table can have various combinations, as long as it can present a mapping relationship between MCS indexes and entries. All combinations will fall within the scope of protection of the present invention.

The method includes the following stages:

S401: A UE receives a first MCS index sent by a base station.

The first MCS index is determined by the base station according to an acquired first MCS table.

S402: The UE determines a modulation order and a code block size according to the first MCS table and the first received MCS index.

The first MCS table includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the first combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second MCS table merely include QPSK, 16QAM and 64QAM.

The first MCS table includes an entry in which a modulation scheme is higher than 64QAM; and the first MCS table further includes at least one entry that is found in the second MCS table and in which a modulation scheme is QPSK, where the entries that are found in the first MCS table and in which a modulation scheme is QPSK cannot merely be K entries found in the second MCS table and in which the corresponding MCS indices are continuous and largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or the first MCS table further includes at least one entry that is found in the second MCS table and in which a modulation scheme is 16QA ^m . The modulation schemes in the entries in the second MCS table merely include QPSK, 16QAM and 64QAM. An entry in the first MCS table refers to a modulation scheme and a TBS index that correspond to an MCS index in the first MCS table, and an entry in the second MCS table refers to a modulation scheme and a TBS index that correspond to an MCS index in the second MCS table.

The combination is a combination formed by at least one entry found in the second MCS table and in which a modulation scheme is QPSK. In an example of the second MCS table shown in Table 6, there are 210-1 =1023 combinations made up of at least one entry found in the second MCS table and in which one modulation scheme is QPSK. For example, the join may be a join formed by an entry found in the second MCS table and corresponding to CQI index 6, or it may be a join formed by entries in the second MCS table corresponding, respectively, to The MCS indices 6, 7, 8 and 9 can be a combination formed by entries, in the second CQI table, that correspond, respectively, to the CQI indices 3, 6, 7, 8 and 9, or similar.

It should be noted that the first MCS table in the present embodiment may be any type of the six types of first MCS tables in the above embodiments, and the details are not described again herein.

Specifically, determining a modulation order and a code block size according to the first MCS table and the first received MCS index includes:

determining a first TBS index and the modulation order according to the first MCS table and the first received MCS index; and

determine the code block size according to the first TBS index, a first PRB quantity and a first TBS table.

The first PRB quantity is a PRB quantity assigned to the UE by the base station; or the first PRB quantity is a larger integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient.

The first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table.

A value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26.

Or, optionally, a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26, and the transmission block sizes corresponding to the TBS indices 0 -26 in the first TBS table are equal to the transmission block sizes corresponding to TBS indices 0-26, in a second TBS table; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

Or, optionally, a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26, and the transmission block sizes corresponding to the TBS indices 0 -C in the first TBS table are equal to the transmission block sizes corresponding to TBS indices 0-C in a second TBS table, where C is a non-negative integer less than or equal to 26; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

For descriptions of the first TBS table and the second TBS table in the present embodiment, it is necessary to refer to the previous embodiments and the details are not described again herein.

Additionally, the UE receives a PDSCH based on the modulation order and code block size.

As shown in Figure 5, an embodiment of the present invention further provides a CQI notification apparatus 50. The apparatus 50 includes:

an acquisition module 51, configured to acquire a first CQI table, where

The first CQI table may be predefined by a UE, may be notified by a base station to a UE, or may be selected by a UE from at least two predefined tables based on a downlink channel state. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of the at least two predefined tables according to a downlink channel state or a downlink channel state and notify the selected table to the base station. A CQI table is used to describe a mapping relationship between CQI indexes and inputs, and the mapping relationship is not limited to being represented in tabular form, it can be represented by descriptive expression;

a first acquisition module 52, configured to learn a first CQI index according to the first CQI table acquired by the acquisition module 51; and

a sending module 53, configured to send the first CQI index learned by the first acquisition module 52 to a base station, so that the base station determines a first modulation and coding scheme MCS index according to the first CQI index.

The first CQI table acquired by acquisition module 51 includes:

an input in which a modulation scheme is higher than quadrature amplitude modulation, QAM, 64; and

at least one entry found in a second CQI table and in which a modulation scheme is quadrature phase shift, QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different of a first combination, formed by at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first combination is N entries found in the second CQI table and in which the CQI indices corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where

The modulation schemes in the entries in the second CQI table merely include QPSK, 16QAM and 64QAM.

In the first CQI table acquired by the acquisition module, the at least one entry found in the second CQI table and in which a modulation scheme is QPSK includes:

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is the same; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is not the same; either part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is QPSK; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which a corresponding CQI index is largest among all the entries found in the CQI table and in which a modulation scheme is QPSK.

In the first CQI table acquired by the acquisition module, the at least one entry found in the second CQI table and in which a modulation scheme is 16QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 16QAM; either

at least one entry different from an entry in which a corresponding CQI index is smallest among all entries found in the second CQI table and in which a modulation scheme is 16QAM.

Furthermore, the first CQI table acquired by the acquisition module 51 further includes: at least one entry that is found in the second CQI table and in which a modulation scheme is 64QAM.

Specifically, in the first CQI table acquired by the acquisition module, the at least one entry in which a modulation scheme is 64QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 64QAM; either

part of entries found in the second CQI table and in which a modulation scheme is 64QAM, where the part of entries is at least one entry different from an entry in which a corresponding CQI index is largest among all entries which are found in the second CQI table and in which a modulation scheme is 64QAM.

Furthermore, a spectral efficiency at an input in which a corresponding CQI index is smaller among entries that are in the first CQI table acquired by the acquisition module 51 and in which a modulation scheme is higher than 64QAM is equal to a spectral efficiency at an entry in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM; or the spectral efficiencies at T entries in which the corresponding CQI indices are smaller between entries found in the first CQI table and in which a modulation scheme is higher than 64QAM are equal to or approximately equal to spectral efficiencies at T entries in which the corresponding CQI indices are largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM, where T is equal to any natural number from 1-5.

Optionally, a spectral efficiency at an entry in which a corresponding CQI index is larger among entries found in the first CQI table and in which a modulation scheme is higher than 64QAM is:

4/3 times a spectral efficiency at an entry in which a corresponding CQI index is the largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM; or

8 times the maximum code rate of a terminal, where the maximum code rate is a positive real number less than 1; either

7.4063; either

7,432.

Optionally, the spectral efficiencies in when it is mentioned that the spectral efficiencies in X inputs arranged in the upward order of the spectral efficiency, a difference between a spectral efficacy in each input and a spectral efficacy in a respective preceding entry is equal to the same constant; or when it is mentioned that spectral efficiencies in spectral efficiencies arranged in ascending order, this means that starting from the second entry in the a range from a constant minus a preset value to the constant plus the preset value; and X is an integer greater than 2;

a spectral efficiency on an entry in which a corresponding CQI index is the smallest among the which a corresponding CQI index is the largest among all the entries found in the second CQI table and in which a modulation scheme is 64QAM; and a spectral efficiency on an entry in which a corresponding CQI index is the largest among the entries X found in the first CQI table and in which the CQI indices are largest is:

4/3 times the spectral efficiency at the entry at which the corresponding CQI index is largest among all entries found in the second CQI table and at which a modulation scheme is 64QAM; or 8 times the maximum code rate of a terminal, where the maximum code rate is a positive real number less than 1; either

7.4063; either

7,432.

Optionally, the spectral efficiencies at entries found in the first CQI table and for which a modulation scheme is higher than 64QAM include at least one of the following sets of numerical values:

{5.5547 6.18056,80627.432},

{6.1805 6.80627.432},

{5.5547 6.17976,80477,4297},

{6.1797 6.80477.4297},

{5.5547 6.17196.7891 7.4063},

{6.1719 6.7891 7.4063},

{5.5547 6.49347.432},

{6.4934 7.432},

{5.5547 6.49227.4297},

{6.4922 7.4297},

{5.5547 6.48057.4063},

{6.4805 7.4063},

{5.5547 6.48447.4063},

{6.4844 7.4063},

{5.5547 6.02406,49346,96277,432},

{6.0234 6.49226.96097.4297},

{5.5547 6.02346,49226,96097,4297},

{6.0176 6.48056.94347.4063},

{5.5547 6.01766,48056,94347,4063},

{6.0176 6.48056.94347.4063},

{5.55476.01566.4844 6.94537.4063},

{6.01566,48446,9453 7.4063},

{5.55475.93026.3056 6.6811 7.05657.432},

{5.93026.30566.6811 7.05657.432},

{5.55475.92976.3047 6.67977.0547 7.4297},

{5.92976,30476,6797 7.05477,4297},

{5.55475.92506.2953 6.66567.0360 7.4063},

{5.92506,29536,6656 7.03607,4063},

{5.55475.92196.2969 6.6641 7.0391 7.4063}, and

{5.92196.29696.6641 7.0391 7.4063}.

Furthermore, a value range of a CQI index in the first CQI table acquired by the acquisition module 51 is equal to a value range of a CQI index in the second CQI table.

The MCS notification apparatus shown in Figure 5 may execute corresponding steps in the above embodiment of the method. For details, it is necessary to refer to the descriptions in the previous implementation of the method; and for the purposes achieved by the MCS notification apparatus, reference may also be made to the descriptions in the above embodiment of the method.

As shown in Figure 6, an embodiment of the present invention further provides an MCS notification apparatus 60. The apparatus 60 includes:

an acquisition module 61, configured to acquire a first CQI table and a first MCS table, where the first CQI table may be predefined in a protocol, preset by an EU in compliance with a protocol, or prestored by an EU; or is selected by an EU from at least two predefined tables according to a downlink channel state; or it can be reported by a base station to the EU. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to an uplink channel state or a downlink channel state, and notify the EU about the selected table. A CQI table is used to describe a mapping relationship between CQI indexes and entries. The mapping relationship in the CQI table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the CQI table in the present invention is not intended to be limited to the format described herein, that is, the CQI table can have various combinations, as long as it can present a mapping relationship between CQI indexes and entries. All combinations will fall within the scope of protection of the present invention; and

the first MCS table may be predefined in a protocol, preset by the EU in compliance with a protocol, or prestored by the EU; or is selected by the EU from at least two predefined tables according to a downlink channel state; or it can be notified by the base station to the EU. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to an uplink channel state or a downlink channel state, and notify the EU about the selected table. An MCS table is used to describe a mapping relationship between MCS indexes and entries. The mapping relationship in the MCS table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the MCS table in the present invention is not intended to be limited to the format described herein, that is, the MCS table can have various combinations, as long as it can present a mapping relationship between MCS indexes and entries. All combinations will fall within the scope of protection of the present invention;

a receiving module 62, configured to receive a first CQI index sent by a terminal EU, where the first CQI index is determined by the EU according to the first CQI table;

a determination module 63, configured to determine a first MCS index according to the first CQI table acquired by the acquisition module, the first MCS table acquired by the acquisition module, and the first CQI index received by the receiving module 62; and

a sending module 64, configured to send the first determined MCS index to the EU.

The first CQI table acquired by acquisition module 61 includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second CQI table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first combination is N entries found in the second CQI table and in which the CQI indices corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second CQI table merely include QPSK, 16QAM and 64QAM.

The first MCS table acquired by the acquisition module includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a second combination, formed by the at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the second combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second MCS table merely include QPSK, 16QAM and 64QAM.

The determination module 63 is specifically configured to:

determining a first TBS index and the first MCS index according to a first acquired PRB quantity, the first CQI table acquired by the acquisition module, the first MCS table acquired by the acquisition module, a first TBS table and the first CQI index received, where

the first PRB quantity is a PRB quantity assigned to the UE by the base station; or the first PRB quantity is a larger integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient;

the first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table.

Optionally, a value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to TBS indices 0-26 in the first TBS table are equal to the transmission block sizes corresponding to TBS indices 0-26 in a second TBS table; a value range of a TBS index in the second TBS table is 0-26, where the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

Or, optionally, a value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to the TBS indices 0-C in the first TBS table are equal to the transmission block sizes corresponding to the TBS indices 0-C in a second TBS table, where C is a non-negative integer less than or equal to 26; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

Determination module 63 includes:

a first determination submodule 631, configured to determine, according to the first CQI table acquired by the acquisition module and the first CQI index received by the reception module, a first modulation scheme and a first spectral efficiency corresponding to the first CQI index received; and

a second determination submodule 632, configured to learn, according to the first acquired PRB quantity and the first spectral efficiency determined by the first determination submodule, a first transmission block size transmitted to the UE; and

obtain, according to the first TBS table, the first TBS index found in the first TBS table and corresponding to the first transmission block size and the first PRB quantity, where the first transmission block size is determined by the second submodule of determination.

Optionally, the first TBS table includes at least one of a TBS index Y1, a TBS index Y2, a TBS index Y3, and TBS indexes Y4_1 to Y4_5. For descriptions of entries corresponding to said TBS indices in the first TBS table, it is necessary to refer to the previous embodiments of the method, and the details are not described here again.

In the first CQI table acquired by the acquisition module, the at least one entry found in the second CQI table and in which a modulation scheme is QPSK includes:

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is the same; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is not the same; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is QPSK; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which a corresponding CQI index is largest among all the entries found in the CQI table and in which a modulation scheme is QPSK.

In the first CQI table acquired by the acquisition module, the at least one entry found in the second CQI table and in which a modulation scheme is 16QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 16QAM; either

at least one entry different from an entry in which a corresponding CQI index is smallest among all entries found in the second CQI table and in which a modulation scheme is 16QAM.

Furthermore, the first CQI table acquired by the acquisition module may further include: at least one entry that is found in the second CQI table and in which a modulation scheme is 64QAM.

Specifically, in the first CQI table acquired by the acquisition module, the at least one entry found in the second CQI table and in which a modulation scheme is 64QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 64QAM; either

part of entries found in the second CQI table and in which a modulation scheme is 64QAM, where the part of entries is at least one entry different from an entry in which a corresponding CQI index is largest among all entries which are found in the second CQI table and in which a modulation scheme is 64QAM.

Furthermore, a spectral efficiency at an input in which a corresponding CQI index is smallest among the entries found in the first CQI table acquired by the acquisition module and in which a modulation scheme is higher than 64QAM is equal to a spectral efficiency at an entry in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM; either

the spectral efficiencies at T inputs in which the corresponding CQI indices are smaller between entries found in the first CQI table and in which a modulation scheme is higher than 64QAM are equal to or approximately equal to spectral efficiencies at T inputs in which the corresponding CQI indices are largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM, where T is equal to any natural number from 1 -5.

Furthermore, a value range of a CQI index in the first CQI table acquired by the acquisition module is equal to a value range of a CQI index in the second CQI table.

In the first CQI table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is QPSK includes:

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

In the first CQI table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is 16QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a second MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the part of inputs is at least one different input from inputs in which a respective MCS index is larger or smaller among all the entries found in the second MCS table and in which a modulation scheme is 16QAM.

Furthermore, the first MCS table acquired by the acquisition module may further include: at least one entry that is found in the second MCS table and in which a modulation scheme is 64QAM.

Specifically, in the first CQI table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of inputs that are found in the second MCS table and in which a modulation scheme is 64QAM, where the part of inputs is at least one input different from an input in which an MCS index is smallest among all the inputs that are found in the second MCS table and in which a modulation scheme is 64QAM; either

part of inputs that are found in the second MCS table and in which a modulation scheme is 64QAM, where the part of inputs is at least one input different from an input in which an MCS index is largest among all inputs that are found in the second MCS table and in which a modulation scheme is 64QAM.

Furthermore, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes: a TBS index in an entry in which a corresponding MCS index is smaller between all entries found in the first MCS table acquired by the acquisition module and in which a modulation scheme is higher than 64QAM is equal to a TBS index in an entry in which an MCS index is larger between all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

the TBS indices in R entries in which the corresponding MCS indices are smaller between entries found in the first MCS table and in which a modulation scheme is higher than 64QAM and which may be equal to TBS indices in R entries in which the MCS indices are largest among all inputs in which a modulation scheme is 64QAM and the MCS indices are not greater than 27, where R is a natural number.

Furthermore, a value range of an MCS index in the first MCS table acquired by the acquisition module is equal to a value range of an MCS index in the second MCS table.

Optionally, the first MCS table may further include at least one entry in Table D1, D2, D3, D4 or D5, where any entry includes an MCS index, and a modulation order and a TBS index corresponding to the index MCS. For Table D1, Table D2, Table D3, Table D4 and Table D5, it is necessary to refer to the previous embodiment of the method, and the details are not described again herein.

The MCS notification apparatus shown in Figure 6 may execute corresponding steps in the above embodiment of the method. For details, it is necessary to refer to the descriptions in the previous implementation of the method; and for the purposes achieved by the MCS notification apparatus, reference may also be made to the descriptions in the above embodiment of the method.

As shown in Figure 7, one embodiment of the present invention further provides an MCS notification apparatus 70. The apparatus 70 provides:

an acquisition module 71, configured to acquire a first CQI table and a first MCS table, where

the first CQI table may be predefined in a protocol, preset by an EU in compliance with a protocol, or prestored by an EU; or is selected by an EU from at least two predefined tables according to a downlink channel state; or it may be reported by a base station to a UE. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to an uplink channel state or a downlink channel state, and notify the EU about the selected table. A CQI table is used to describe a mapping relationship between CQI indexes and entries. The mapping relationship in the CQI table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the CQI table in the present invention is not intended to be limited to the format described herein, that is, the CQI table can have various combinations, as long as it can present a mapping relationship between CQI indexes and entries. All combinations will fall within the scope of protection of the present invention; and

the first MCS table may be predefined in a protocol, preset by an EU in compliance with a protocol, or prestored by an EU; or is selected by an EU from at least two predefined tables according to a downlink channel state; or it may be reported by a base station to a UE. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to an uplink channel state or a downlink channel state, and notify the EU about the selected table. An MCS table is used to describe a mapping relationship between MCS indexes and entries. The mapping relationship in the MCS table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the MCS table in the present invention is not intended to be limited to the format described herein, that is, the MCS table can have various combinations, as long as it can present a mapping relationship between MCS indexes and entries. All combinations will fall within the scope of protection of the present invention;

a receiving module 72, configured to receive a first CQI index, where the first CQI index is determined by an EU according to the first CQI table;

a determination module 73, configured to determine a first MCS index according to the first CQI table acquired by the acquisition module, the first MCS table acquired by the acquisition module, and the first CQI index received by the receiving module 72; and

a sending module 74, configured to send the first MCS index determined by the determination module to the EU.

The first CQI table acquired by the acquisition module includes: an entry in which a modulation scheme is higher than 64QAM, where an entry in the first CQI table refers to a modulation scheme, a code rate and an efficiency that correspond to a CQI index in the first CQI table.

The first MCS table acquired by the acquisition module includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination (the term first in the first combination is only used to distinguish one combination from another, and does not necessarily require or imply that a relationship or sequence exists between such combinations; the first combination is, in essence, the same as the second combination in the corresponding embodiment to Figure 2), formed by at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the first combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and larger, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second MCS table merely include QPSK, 16QAM and 64QAM.

It should be noted that the first MCS table used by the MCS notification apparatus 70 may be the same as the first MCS table used by the MCS notification apparatus 60. One difference between the two apparatus is that the first CQI table used by the apparatus notification of MCS 70 may be different from the first CQI table used by the MCS notification apparatus 60. However, the first CQI tables used by the two apparatuses both include an entry in which a modulation scheme is more higher than 64QAM.

In the first MCS table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is QPSK includes:

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

In the first MCS table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is 16QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a second MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of entries found in the second MCS table and in which a modulation scheme is 16QAM, where the part of inputs is at least one entry different from entries in which a respective MCS index is largest or smallest among all entries found in the second MCS table and in which a modulation scheme is 16QAM.

Furthermore, the first MCS table acquired by the acquisition module further includes: at least one entry which is found in the second MCS table and in which a modulation scheme is 64QAM.

Specifically, in the first MCS table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of inputs that are found in the second MCS table and in which a modulation scheme is 64QAM, where the part of inputs is at least one input different from an input in which an MCS index is smallest among all the inputs that are found in the second MCS table and in which a modulation scheme is 64QAM.

Furthermore, in the first MCS table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes that:

a TBS index on an entry in which a corresponding MCS index is smallest among all entries found in the first MCS table acquired by the acquisition module and in which a modulation scheme is higher than 64QAM is equal to a TBS index in an entry in which an MCS index is largest among all entries found in the second MCS table in which a modulation scheme is 64QAM.

Furthermore, a value range of an MCS index in the first MCS table acquired by the acquisition module is equal to a value range of an MCS index in the second MCS table.

The MCS notification apparatus shown in Figure 7 may execute corresponding steps in the above embodiment of the method. For details, it is necessary to refer to the descriptions in the previous implementation of the method; and for the purposes achieved by the MCS notification apparatus, reference may also be made to the descriptions in the above embodiment of the method.

As shown in Figure 8, one embodiment of the present invention further provides an MCS notification apparatus 80. The apparatus 80 provides:

an acquisition module 81, configured to acquire a first MCS table, where

the first MCS table may be predefined in a protocol, preset by an EU in compliance with a protocol, or prestored by an EU; or is selected by an EU from at least two predefined tables according to a downlink channel state; or it may be reported by a base station to a UE. Specifically, a method for notifying the UE by the base station may be: selecting, by the base station, a table of at least two predefined tables according to an uplink channel state or a downlink channel state, and notify the EU about the selected table. An MCS table is used to describe a mapping relationship between MCS indexes and entries. The mapping relationship in the MCS table in the present embodiment of the present invention is only used as an example for the sake of understanding of the present invention, and a representation format of the MCS table in the present invention is not intended to be limited to the format described herein, that is, the MCS table can have various combinations, as long as it can present a mapping relationship between MCS indexes and entries. All combinations will fall within the scope of protection of the present invention;

a receiving module 82, configured to receive a first MCS index sent by a base station, where the first MCS index is determined by the base station according to the first MCS table; and

a determination module 83, configured to determine a modulation order and a code block size according to the first MCS table and the first MCS index received by the receiving module 82.

The first MCS table acquired by the acquisition module includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the first combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second MCS table merely include QPSK, 16QAM and 64QAM.

Determination module 83 includes:

a first determination submodule 831, configured to determine a first TBS index and the modulation order according to the first MCS table acquired by the acquisition module and the first received MCS index; and

a second determination submodule 832, configured to determine the code block size according to the first index TBS, a first quantity PRB and a first table TBS, where

the first PRB quantity is a PRB quantity assigned to the UE by the base station; or the first PRB quantity is a larger integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient; and

the first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table.

Optionally, a value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to TBS indices 0-26 in the first TBS table are equal to the transmission block sizes corresponding to TBS indices 0-26 in a second TBS table; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

Or, optionally, a value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to the TBS indices 0-C in the first TBS table are equal to the transmission block sizes corresponding to the TBS indices 0-C in a second TBS table, where C is a non-negative integer less than or equal to 26; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

Optionally, the first TBS table includes at least one of a TBS index Y1, a TBS index Y2, a TBS index Y3, and TBS indexes Y4_1 to Y4_5. For descriptions of entries corresponding to said TBS indexes in the first TBS table, it is necessary to refer to the previous embodiment of the method, and the details are not described here again.

In the first MCS table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is QPSK includes:

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a corresponding MCS index is largest among all entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

In the first MCS table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is 16QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is the same; either part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a second MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the part of inputs is at least one different input from inputs in which a respective MCS index is larger or smaller among all the entries found in the second MCS table and in which a modulation scheme is 16QAM.

Furthermore, the first MCS table acquired by the acquisition module further includes: at least one entry which is found in the second MCS table and in which a modulation scheme is 64QAM.

Specifically, in the first MCS table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of inputs that are found in the second MCS table and in which a modulation scheme is 64QAM, where the part of inputs is at least one input different from an input in which an MCS index is smallest among all the inputs that are found in the second MCS table and in which a modulation scheme is 64QAM; either

part of inputs that are found in the second MCS table and in which a modulation scheme is 64QAM, where the part of inputs is at least one input different from an input in which an MCS index is largest among all inputs that are found in the second MCS table and in which a modulation scheme is 64QAM.

Furthermore, in the first MCS table acquired by the acquisition module, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes that:

a TBS index on an entry in which a corresponding MCS index is smallest among all entries found in the first MCS table and in which a modulation scheme is higher than 64QAM is equal to a TBS index on an entry in which an MCS index is largest among all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

TBS indices in R entries in which the corresponding MCS indices are smaller among entries found in the first MCS table and in which a modulation scheme is higher than 64QAM may be equal to TBS indices in R entries in the which the MCS indices are largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM and the MCS indices are not greater than 27, where R is a natural number.

Optionally, the first MCS table further includes at least one entry in Table D1, D2, D3, D4 or D5, where any entry includes an MCS index, and a modulation order and a TBS index corresponding to the MCS index. . For Tables D1, d2, D3, D4 and D5, it is necessary to refer to the previous implementation of the method.

Furthermore, a value range of an MCS index in the first MCS table acquired by the acquisition module is equal to a value range of an MCS index in the second MCS table.

The MCS notification apparatus shown in Figure 8 may execute corresponding steps in the above embodiment of the method. For details, it is necessary to refer to the descriptions in the previous implementation of the method; and for the purposes achieved by the MCS notification apparatus, reference may also be made to the descriptions in the above embodiment of the method.

As shown in Figure 9, an embodiment of the present invention further provides a CQI channel quality indicator notification apparatus 90, including: a processor 91 and a transmitter 92;

the processor is configured to acquire a first CQI table; and is configured to learn a first CQI index according to the first CQI table; and

The transmitter is configured to send the first CQI index acquired by the processor to a base station, so that the base station determines a first modulation and coding scheme MCS index according to the first CQI index.

The first CQI table acquired by the processor includes:

an input in which a modulation scheme is higher than quadrature amplitude modulation, QAM, 64; and

at least one entry found in a second CQI table and in which a modulation scheme is a QPSK quadrature phase shift, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first combination is N entries found in the second CQI table and in which the indices CQI corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry that is found in the second CQI table and in which a modulation scheme is 16QAM, where

The modulation schemes in the entries in the second CQI table merely include QPSK, 16QAM and 64QAM.

In the first CQI table acquired by the processor, the at least one entry found in the second CQI table and in which a modulation scheme is QPSK includes:

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is the same; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is not the same; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is QPSK; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which a corresponding CQI index is largest among all the entries found in the second CQI table and in which a modulation scheme is QPSK.

In the first CQI table acquired by the processor, the at least one entry found in the second CQI table and in which a modulation scheme is 16QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 16QAM; either

at least one entry different from an entry in which a corresponding CQI index is smallest among all entries found in the second CQI table and in which a modulation scheme is 16QAM.

The first CQI table acquired by the processor also includes:

at least one entry that is found in the second CQI table and in which a modulation scheme is 64QAM.

The at least one entry in which the modulation scheme is 64QAM and which is found in the first CQI table acquired by the processor includes:

all entries found in the second CQI table and in which a modulation scheme is 64QAM; either

part of entries found in the second CQI table and in which a modulation scheme is 64QAM, where the part of entries is at least one entry different from an entry in which a corresponding CQI index is largest among all entries which are found in the second CQI table and in which a modulation scheme is 64QAM.

A spectral efficiency at an input in which a corresponding CQI index is smallest among the entries found in the first CQI table acquired by the processor and in which a modulation scheme is higher than 64QAM is equal to a spectral efficiency in an entry in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM.

A value range of a CQI index in the first CQI table acquired by the processor is equal to a value range of a CQI index in the second CQI table.

For the specific implementation of functions of various components of the CQI notification apparatus 90 in the present embodiment, it is necessary to refer to the descriptions in the previous embodiment of the CQI notification method, and the details are not described again herein.

As shown in Figure 10, an embodiment of the present invention further provides a modulation and coding scheme MCS notification apparatus 10, including:

a processor 101, configured to acquire a first CQI table and a first MCS table;

a receiver 102, configured to receive a first CQI channel quality indicator index sent by a terminal EU, where the first CQI index is determined by the EU according to the first CQI table, and

the processor is configured to determine a first MCS index according to the first CQI table acquired by the processor, the first acquired MCS table and the first CQI index received by the receiver; and

a transmitter 103, configured to send the first MCS index determined by the processor to the EU.

The first CQI table acquired by the processor includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second CQI table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second CQI table and in which a modulation scheme is QPSK, the first combination is N entries found in the second CQI table and in which the CQI indices corresponding to QPSK are continuous and the largest, and N is equal to 3, or N is a positive integer less than 4, or N is a positive integer; and/or at least one entry I which is found in the second CQI table and in which a modulation scheme is 16QAm, where

The modulation schemes in the second CQI table merely include QPSK, 16QAM and 64QAM.

The first MCS table acquired by the processor includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a second combination, formed by the at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the second combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second MCS table merely include QPSK, 16QAM and 64QAM.

The processor is specifically configured to:

determining a first index TBS and the first index MCS according to a first quantity PRB acquired, the first table CQI acquired by the processor, and the first table MCS acquired by the processor, and the first index CQI received, where

the first PRB quantity is a PRB quantity assigned to the LTE by the base station; or the first PRB quantity is a larger integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient;

the first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table;

a value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to TBS indices 0-26 in the first TBS table are equal to the transmission block sizes corresponding to TBS indices 0-26 in a second TBS table; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

The processor is specifically configured to:

determining, according to the first CQI table acquired by the processor and the first CQI index received by the receiver, a first modulation scheme and a first spectral efficiency that correspond to the first CQI index received; learning, according to the first PRB quantity and the first determined spectral efficiency, a first transmission block size transmitted to the UE; and

obtaining, according to the first TBS table, the first TBS index found in the first TBS table and corresponding to the first determined transmission block size and the first PRB quantity.

In the first CQI table acquired by the processor, the at least one entry found in the second CQI table and in which a modulation scheme is QPSK includes:

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is the same; or part of inputs that are in the second CQI table and in which a modulation scheme is QPSK, where a difference between successive CQI indices corresponding to the part of inputs is not the same; or part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is QPSK; either

part of inputs found in the second CQI table and in which a modulation scheme is QPSK, where the CQI indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which a corresponding CQI index is largest among all the entries found in the second CQI table and in which a modulation scheme is QPSK.

In the first CQI table acquired by the processor, the at least one entry found in the second CQI table and in which a modulation scheme is 16QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 16QAM; either

at least one entry different from an entry in which a corresponding CQI index is smallest among all entries found in the second CQI table and in which a modulation scheme is 16QAM.

The first CQI table acquired by the processor also includes:

at least one entry that is found in the second CQI table and in which a modulation scheme is 64QAM. In the first CQI table acquired by the processor, the at least one entry found in the second CQI table and in which a modulation scheme is 64QAM includes:

all entries found in the second CQI table and in which a modulation scheme is 64QAM; either

part of entries found in the second CQI table and in which a modulation scheme is 64QAM, where the part of entries is at least one entry different from an entry in which a corresponding CQI index is largest among all entries which are found in the second CQI table and in which a modulation scheme is 64QAM.

A spectral efficiency at an input in which a corresponding CQI index is smallest among the entries found in the first CQI table acquired by the processor and in which a modulation scheme is higher than 64QAM is equal to a spectral efficiency in an entry in which a corresponding CQI index is largest among all entries found in the second CQI table and in which a modulation scheme is 64QAM.

A value range of a CQI index in the first CQI table acquired by the processor is equal to a value range of a CQI index in the second CQI table.

In the first CQI table acquired by the processor, the at least one entry found in the second MCS table and in which a modulation scheme is QPSK includes:

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

In the first CQI table acquired by the processor, the at least one entry found in the second MCS table and in which a modulation scheme is 16QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a second MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of entries found in the second MCS table and in which a modulation scheme is 16QAM, where the part of inputs is at least one entry different from an entry in which a respective MCS index is larger or smaller between all entries found in the second MCS table and in which a modulation scheme is 16QAM.

The first MCS table acquired by the processor also includes:

at least one entry that is found in the second MCS table and in which a modulation scheme is 64QAM.

In the first CQI table acquired by the processor, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of inputs that are found in the second MCS table and in which a modulation scheme is 64QAM, where the part of inputs is at least one input different from an input in which an MCS index is smallest among all the inputs that are found in the second MCS table and in which a modulation scheme is 64QAM.

In the first CQI table acquired by the processor, the at least one entry is found in the second MCS table and in which a modulation scheme is 64QAM includes that:

a TBS index on an entry in which a corresponding MCS index is smallest among all entries found in the first MCS table and in which a modulation scheme is higher than 64QAM is equal to a TBS index on an entry in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM.

A value range of an MCS index in the first MCS table acquired by the processor is equal to a value range of an MCS index in the second MCS table.

For the specific implementation of functions of various components of the MCS notification apparatus 10 in the present embodiment, it is necessary to refer to the descriptions in the previous embodiment of the MCS notification method corresponding to Figure 2, and the details are not described again. In the present memory.

As shown in Figure 11, an embodiment of the present invention further provides an MCS coding and modulation scheme notification apparatus 11, including:

a processor 111, configured to acquire a first MCS table; and

a receiver 112, configured to receive a first MCS index sent by a base station, where the first MCS index is determined by the base station according to the first MCS table acquired by the processor; and

The processor 111 is configured to determine a modulation order and a code block size according to the first MCS table acquired by the processor and the first MCS index received by the receiver.

The first MCS table acquired by the processor includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination (the term first in the first combination is only used to distinguish one combination from another, and does not necessarily require or imply that a relationship or sequence exists between such combinations; the first combination is, in essence, the same as the second combination in the corresponding embodiment to Figure 2), formed by at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the first combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second MCS table merely include QPSK, 16QAM and 64QAM.

The processor is specifically configured to:

determining a first TBS index and the modulation order according to the first MCS table acquired by the processor and the first received MCS index; and

determine the code block size according to the first TBS index, a first PRB quantity and a first TBS table, where

the first PRB quantity is a PRB quantity assigned to the UE by the base station; or the first PRB quantity is a larger integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient; and the first TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity; and the first TBS table is a TBS table corresponding to the first MCS table;

a value range of a TBS index in the first TBS table is 0-A, where A is a positive integer less than or equal to 26; or a value range of a TBS index in the first TBS table is 0-B, where B is a positive integer greater than or equal to 26; and the transmission block sizes corresponding to TBS indices 0-26 in the first TBS table are equal to the transmission block sizes corresponding to TBS indices 0-26 in a second TBS table; a value range of a TBS index in the second TBS table is 0-26, and the second TBS table includes at least one PRB quantity corresponding to each TBS index and a transmission block size corresponding to each PRB quantity.

In the first MCS table acquired by the processor, the at least one entry found in the second MCS table and in which a modulation scheme is QPSK includes:

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

In the first MCS table acquired by the processor, the at least one entry found in the second MCS table and in which a modulation scheme is 16QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a second MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of entries found in the second MCS table and in which a modulation scheme is 16QAM, where the part of inputs is at least one entry different from an entry in which a respective MCS index is larger or smaller between all entries found in the second MCS table and in which a modulation scheme is 16QAM.

The first MCS table acquired by the processor also includes:

at least one entry that is found in the second MCS table and in which a modulation scheme is 64QAM.

In the first MCS table acquired by the processor, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of inputs that are found in the second MCS table and in which a modulation scheme is 64QAM, where the part of inputs is at least one input different from an input in which an MCS index is smallest among all the inputs that are found in the second MCS table and in which a modulation scheme is 64QAM.

In the first MCS table acquired by the processor, the at least one entry is found in the second MCS table and in which a modulation scheme is 64QAM includes that:

a TBS index on an entry in which a corresponding MCS index is smallest among all entries found in the first MCS table and in which a modulation scheme is higher than 64QAM is equal to a TBS index on an entry in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM.

A value range of an MCS index in the first MCS table acquired by the processor is equal to a value range of an MCS index in the second MCS table.

For the specific implementation of functions of various components of the MCS notification apparatus 11 in the present embodiment, it is necessary to refer to the descriptions in the previous embodiment of the MCS notification method corresponding to Figure 3, and the details are not described again. In the present memory.

As shown in Figure 12, the present invention provides an MCS modulation and coding scheme notification apparatus, including:

a processor 121, configured to acquire a first CQI table and a first MCS table;

a receiver 122, configured to receive a first CQI index, where the first CQI index is determined by an EU according to the first CQI table, and

the processor 121 is configured to determine a first MCS index according to the first acquired CQI table, the first acquired MCS table and the first CQI index received by the receiver; and

a transmitter 123, configured to send the first MCS index determined by the processor 121 to the EU, where the first CQI table acquired by the processor includes: an entry in which a modulation scheme is higher than 64QAM, where an entry in the first CQI table acquired by the processor refers to a modulation scheme, a code rate and a spectral efficiency that correspond to a CQI index in the first CQI table;

The first MCS table acquired by the processor includes:

an input in which a modulation scheme is higher than 64QAM; and

at least one entry found in a second MCS table and in which a modulation scheme is QPSK, where the at least one entry in which a modulation scheme is QPSK includes a combination, different from a first combination, formed by the at least one entry found in the second MCS table and in which a modulation scheme is QPSK, the first combination is K entries found in the second MCS table and in which the MCS indices corresponding to QPSK are continuous and the largest, and K is equal to 4, or K is a positive integer less than 5, or K is a positive integer; and/or at least one entry that is found in the second MCS table and in which a modulation scheme is 16QAM, where

The modulation schemes in the second MCS table merely include QPSK, 16QAM and 64QAM.

In the first MCS table acquired by the processor, the at least one entry found in the second MCS table and in which a modulation scheme is QPSK includes:

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is the same; or part of inputs that are in the second MCS table and in which a modulation scheme is QPSK, where a difference between successive MCS indices corresponding to the part of inputs is not the same; or part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in which a corresponding MCS index is largest among all entries found in the second MCS table and in which a modulation scheme is QPSK; either

part of inputs found in the second MCS table and in which a modulation scheme is QPSK, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is QPSK.

In the first MCS table acquired by the processor, the at least one entry found in the second MCS table and in which a modulation scheme is 16QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is the same; either part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where a difference between successive MCS indices corresponding to the part of inputs is not the same; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are discontinuous, and the part of inputs is at least one input different from an input in in which a second MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the MCS indices corresponding to the part of inputs are continuous, and the part of inputs is at least one input different from an input in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 16QAM; either

part of inputs found in the second MCS table and in which a modulation scheme is 16QAM, where the part of inputs is at least one different input from inputs in which a respective MCS index is larger or smaller among all the entries found in the second MCS table and in which a modulation scheme is 16QAM.

The first MCS table acquired by the processor also includes:

at least one entry that is found in the second MCS table and in which a modulation scheme is 64QAM.

In the first MCS table acquired by the processor, the at least one entry found in the second MCS table and in which a modulation scheme is 64QAM includes:

all entries found in the second MCS table and in which a modulation scheme is 64QAM; either

part of inputs that are found in the second MCS table and in which a modulation scheme is 64QAM, where the part of inputs is at least one input different from an input in which an MCS index is smallest among all the inputs that are found in the second MCS table and in which a modulation scheme is 64QAM.

In the first MCS table acquired by the processor, the at least one entry is found in the second MCS table and in which a modulation scheme is 64QAM includes that:

a TBS index on an entry in which a corresponding MCS index is smallest among all entries found in the first MCS table and in which a modulation scheme is higher than 64QAM is equal to a TBS index on an entry in which an MCS index is largest among all the entries found in the second MCS table and in which a modulation scheme is 64QAM.

A value range of an MCS index in the first MCS table acquired by the processor is equal to a value range of an MCS index in the second MCS table.

It should be noted that the apparatus shown in Figure 9 to Figure 12 can respectively implement methods provided in the previous embodiments of the method; and for details, it is necessary to refer to the descriptions in the previous embodiments. For the purposes achieved by the apparatus, reference may also be made to the descriptions in the above embodiments.

For the specific implementation of functions of various components of the MCS notification apparatus 11 in the present embodiment, it is necessary to refer to the descriptions in the previous embodiment of the MCS notification method corresponding to Figure 4, and the details are not described again. In the present memory.

A person skilled in the art can clearly understand that, for the purposes of a convenient and brief description, the division of the above function modules is taken as an example for the sake of illustration. In actual application, the above functions can be assigned to different modules and implemented according to a requirement, that is, an internal structure of a device is divided into different function modules to implement all or part of the functions described above. For a detailed working process of the above system, apparatus and unit, reference can be made to a corresponding process in the above embodiments of the method, and the details are not described herein again.

In the various embodiments provided in the present application, it should be understood that the system, apparatus and method described may be implemented in other ways. For example, the embodiment of the apparatus described is merely by way of example. For example, unit division is a purely logical function division and may be another division in an actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not carried out. Furthermore, the mutual couplings or direct couplings or communication connections shown or described can be implemented through of some interfaces. Indirect couplings or communication connections between devices or units may be implemented electronically, mechanically, or in other ways.

Drives described as separate parts may or may not be physically separate, and parts shown as drives may or may not be physical drives, may be located in one location, or may be distributed across multiple network drives. A part or all of the units can be selected according to the actual needs to achieve the objectives of the solutions of the embodiments.

Furthermore, the functional units in embodiments of the present invention may be integrated into a processing unit, or each of the units may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in a hardware form or may be implemented in a hardware form in addition to a software functional unit.

When the above integrated unit is implemented in the form of a software functional unit, the integrated unit may be stored on a computer-readable storage medium. The software functional unit is stored on a storage medium and includes various instructions for instructing a computing device (which may be a personal computer, a server or a network device) to perform a portion of the steps of the methods. described in the embodiments of the present invention. The above storage media includes: any media that can store program code, such as a USB flash drive, removable hard drive, read-only memory (ROM), access memory (RAM), a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are intended merely to describe the technical solutions of the present invention, rather than limit the present invention. Although the present invention is described in detail with reference to the foregoing embodiments, persons of ordinary skill in the art should understand that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalent replacements may be made for some technical features thereof, without departing from the scope of the attached claims.

Claims (17)

1. A method , which includes: receiving (S401) a first modulation and coding scheme index, MCS, from a base station; determining (S402) a first transport block size index, TBS, and modulation order according to a first MCS table and the first MCS index, wherein the first MCS index is an MCS index of the first MCS table; determining the code block size according to the first TBS index, a first number of physical resource blocks, PRB, and a first TBS table; receive a physical downlink shared channel, PDSCH, according to the modulation order and code block size; wherein the first PRB quantity is a PRB quantity assigned to the user equipment, EU; or the first PRB quantity is the largest integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient; and wherein the first TBS index is a TBS index of the first TBS table, and the first TBS table comprises at least one PRB quantity corresponding to each TBS index and each TBS corresponding to each PRB quantity; characterized because the first table TBS comprises at least one index TBS Y2 and at least one entry corresponding to the index TBS Y2 in the following Table A, and wherein any entry comprises a quantity PRB and a TBS corresponding to the quantity PRB, and the index TBS Y2 is equal to 27: Table A

2. Method according to claim 1, wherein the first TBS table comprises at least one TBS index Y3 and at least one entry corresponding to the TBS index Y3 in the following Table B3, wherein the at least one entry comprises a quantity PRB and a transmission block size corresponding to the PRB quantity, and the TBS index Y3 is equal to 33: Table B3

3. Method according to claim 1 or 2, wherein: the first TBS table comprises at least TBS indices Y4_1 to Y4_5 and at least one entry corresponding to each of the TBS indices Y4_1 to Y4_5 in the following Table C ₂ , where the at least one entry includes a PRB quantity and five block sizes corresponding to the PRB quantity, and the TBS index Y4_1 is equal to 28, the index Y4_2 is equal to 29, the index Y4_3 is equal to 30, the index Y4_4 is equal to 31 and the index Y4_5 is equal to 32: Table C ₂

4. The method according to claim 1, wherein the first MCS table consists of 32 entries corresponding to 32 MCS indices in the range of 0 to 31, each entry in the first MCS table comprises an MCS index, a modulation order and a TBS index; and in which: MCS indices 0 to 4 correspond to 5 inputs in which the modulation orders are 2 and in which the TBS indices are 0, 2, 4, 6 and 8 respectively; MCS indices 5 to 9 correspond to 5 inputs in which the modulation orders are 4 and in which the TBS indices are 10, 12, 13, 14 and 15 respectively; MCS indices 10 to 19 correspond to 10 inputs in which the modulation orders are 6 and in which the TBS indices are 15, 16, 17, 18, 19, 20, 21,22, 23 and 24 respectively; the MCS indices 20 to 27 correspond to 8 inputs in which the modulation orders are 8 and in which the TBS indices are 25, 27, 28, 29, 30, 31,32 and 33 respectively; MCS index 28 corresponds to 1 input in which the modulation order is 2 and in which the TBS index is reserved; MCS index 29 corresponds to 1 input in which the modulation order is 4 and in which the TBS index is reserved; MCS index 30 corresponds to 1 input in which the modulation order is 6 and in which the TBS index is reserved; and MCS index 31 corresponds to 1 input in which the modulation order is 8 and in which the TBS index is reserved. 5. The method according to claim 2, wherein in the first MCS table there are five entries in which a modulation scheme is QPSK, and the corresponding MCS indices are 0-4; there are five inputs in which a modulation scheme is 16QAM and the corresponding MCS indices are 5-9; There are eleven entries in which one modulation scheme is 64QAM, and the corresponding MCS indices are 10-20; and a range of values of an MCS index in the first MCS table is 0-31, where in the first MCS table, there are included seven entries with three reserved entries, and the MCS indices corresponding to the reserved entries are 28, 29, 30 and 31 respectively in which a modulation scheme is greater than 64QAM, the corresponding MCS indices are 21 -28, and the smallest index among the inputs is 21 and in which a TBS index in the input found in the first MCS table and in which an MCS index is 21 is 26 and is equal to a TBS index in the entry which is in a second MCS table and which corresponds to the MCS index 28. 6. A method, comprising: acquire a first channel quality indicator index, CQI; determining a first transport block size index, TBS, and a first modulation and coding scheme index, MCS, according to a first number of physical resource blocks, PRB, and the first index CQI; transmit MCS index; and transmit a physical downlink shared channel, PDSCH; wherein the first PRB quantity is a PRB quantity assigned to the user equipment, EU; or the first PRB quantity is the largest integer less than or equal to a product of the PRB quantity assigned to the EU and a specific coefficient; and where the first TBS index is a TBS index of the first TBS table, and the first TBS table comprises at least one PRB quantity corresponding to each TBS index and each TBS corresponding to each PRB quantity; characterized because the first table TBS comprises at least one index TBS Y2 and at least one entry corresponding to the index TBS Y2 in the following Table A, and wherein any entry comprises a quantity PRB and a TBS corresponding to the quantity PRB, and the index TBS Y2 is equal to 27: Table A

7. The method according to claim 6, wherein the first TBS table comprises at least one TBS index Y3 and at least one entry corresponding to the TBS index Y3 in the following table B3, wherein the at least one entry comprises a quantity PRB and a transmission block size corresponding to the PRB quantity, and the TBS index Y3 is equal to 33: Table B3

8. The method according to claim 6 or 7, wherein: The first TBS table comprises at least the TBS indices Y4_1 to Y4_5 and at least one entry corresponding to each of the TBS indices Y4_1 to Y4_5 in the following Table C ₂ , wherein the at least one entry comprises a quantity PRB and five transmission block sizes corresponding to the PRB quantity and TBS index Y4_1 is equal to 28, index Y4_2 is equal to 29, index Y4_3 is equal to 30, index Y4_4 is equal to 31, index Y4_5 is equal to 32: Table C ₂

9. The method according to claim 6, wherein determining a first transport block size index, TBS, and a first modulation and coding scheme index, MCS, according to a first number of physical resource blocks, PRB, and the first CQI index comprises: determining a first modulation scheme and a first spectral efficiency corresponding to the first CQI index according to the first CQI index and a first CQI table; determining a first TBS to transmit to the user equipment according to the first PRB quantity and the first spectral efficiency; determine the first TBS index that corresponds to the first transmission block size and the first PRB quantity and in the first TBS table. 10. Method according to any one of claims 6 to 9, wherein the first CQI table consists of 16 entries corresponding to 16 CQI indices in the range of 0 to 15, each entry in the first CQI table comprises at least one CQI index, a modulation scheme and spectral efficiency; and in which: CQI indices 1 to 3 correspond to 3 inputs in which the modulation schemes are quadrature phase shift keying, QPSK and in which the spectral efficiencies are 0.1523, 0.3770 and 0.8770 respectively; CQI indices 4 to 6 correspond to 3 inputs in which the modulation schemes are quadrature amplitude modulation, QAM 16 and in which the spectral efficiencies are 1.4766, 1.9141 and 2.4063 respectively; CQI indices 7 to 11 correspond to 5 inputs in which the modulation schemes are 64 QAM and in which the spectral efficiencies are 2.7305, 3.3223, 3.9023, 4.5234 and 5.1152 respectively; and CQI indices 12 to 15 correspond to 4 inputs in which the modulation schemes are 256 QAM, and CQI index 12 corresponds to an input in which the spectral efficiency is 5.5547. 11. The method according to claim 10, wherein, CQI indices 0 to 12 of the first CQI table correspond to CQI indices 0, 1, 3, 5, 7, 8, 9, 10, 11, 12, 13, 14 and 15 of a second CQI table; and each entry in the second CQI table comprises at least one CQI index, a modulation scheme and a spectral efficiency. 12. The method according to claim 10 or 11, wherein the spectral efficiency of 5.5547 in an entry corresponding to the CQI index 12 and 256 QAM in the first CQI table is equal to a spectral efficiency in an entry corresponding to the CQI index 15 and 64QAM in the second CQI table. 13. The method according to claim 11 or 12, wherein a spectral efficiency at an entry in which a corresponding CQI index is the highest among the entries found in the first CQI table and in which a modulation is greater than 64QAM is: 4/3 times a spectral efficiency at an entry in which a corresponding CQI index is the highest among all entries found in the second CQI table and in which a modulation scheme is 64QAM; or 7.4063. 14. The method according to claim 9, wherein the first MCS table consists of 32 entries corresponding to 32 MCS indices in the range of 0 to 31, each entry in the first MCS table comprises an MCS index, a modulation order and a TBS index; and in which: MCS indices 0 to 4 correspond to 5 inputs in which the modulation orders are 2 and in which the TBS indices are 0, 2, 4, 6 and 8 respectively; MCS indices 5 to 9 correspond to 5 inputs in which the modulation orders are 4 and in which the TBS indices are 10, 12, 13, 14 and 15 respectively; MCS indices 10 to 19 correspond to 10 inputs in which the modulation orders are 6 and in which the TBS indices are 15, 16, 17, 18, 19, 20, 21,22, 23 and 24 respectively; the MCS indices 20 to 27 correspond to 8 inputs in which the modulation orders are 8 and in which the TBS indices are 25, 27, 28, 29, 30, 31,32 and 33 respectively; MCS index 28 corresponds to 1 input in which the modulation order is 2 and in which the TBS index is reserved; MCS index 29 corresponds to 1 input in which the modulation order is 4 and in which the TBS index is reserved; MCS index 30 corresponds to 1 input in which the modulation order is 6 and in which the TBS index is reserved; and MCS index 31 corresponds to 1 input in which the modulation order is 8 and in which the TBS index is reserved. 15. A communications device, comprising: a processor, configured to perform the method according to any one of claims 1 to 5. 16. A communications device, comprising: a processor, configured to perform the method according to any one of claims 6 to 14. 17. Computer-readable storage medium, comprising an instruction, wherein when the instruction is executed on a computer, the computer is enabled to perform the method according to any one of claims 1 to 5 or 6 to 14.